What Can Minecraft Teach Us About Learning?

Summary

Short Wave: What Can Minecraft Teach Us About Learning? Hosted by Emily Kwong and Regina Barber | Released May 2, 2025

In the May 2, 2025 episode of NPR’s Short Wave, hosts Emily Kwong and Regina Barber delve into the fascinating intersections of video gaming, culinary science, and health research. Featuring guest Juana Saares, the episode titled "What Can Minecraft Teach Us About Learning?" unpacks how the popular video game Minecraft serves as a powerful tool for understanding human learning processes, explores the scientific secrets behind the beloved Italian dish cacio e pepe, and investigates the alarming rise of colorectal cancer among younger populations.

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1. Exploring Social Learning through Minecraft

[02:14 - 09:17]

The episode kicks off with an engaging discussion on the use of Minecraft in scientific research. Juana Saares, a host from NPR’s “All Things Considered” and an avid gamer, joins Emily and Regina to explore how scientists leverage Minecraft to study learning behaviors.

Minecraft’s Role in Understanding Learning Dynamics

Emily Kwong introduces the primary focus: “...learning in groups. A study in the journal Nature Communications tried to bridge this gap between studying how we learn individually and how we learn socially by watching over 100 participants with specific goals in crafted Minecraft environments” (03:02).

Key Findings from the Study

Regina Barber elaborates on the research led by Charlie Wu, the lead researcher: “...the most successful players were the most adaptive, like switching between individual mining and using social learning when this situation called for it” (03:31). The study revealed that the ability to toggle between solo and collaborative strategies significantly enhances performance within the game environment.

Insights from Cognitive Science

Natalia Velez, a cognitive scientist not directly involved in the study, comments: “Video games are incredibly popular among kids. It’s where they often meet up and build social connections they may not otherwise have” (04:03). This highlights the relevance of modern social interactions in research, emphasizing the importance of studying learning within contemporary contexts.

Notable Quote:

Charlie Wu (03:02): “We're stronger together, Juana.”

This sentiment encapsulates the essence of the study, showcasing the synergy between individual and social learning.

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2. The Science Behind Perfect Cacio e Pepe

[05:01 - 07:11]

Transitioning from gaming to the kitchen, the hosts delve into the scientific intricacies of making the perfect cacio e pepe, a classic Roman pasta dish renowned for its simplicity and flavor.

Cacio e Pepe: A Culinary Challenge

Emily Kwong describes the dish: “...the symphonic combination of pasta, black pepper, and pecorino romano cheese” (05:08). Despite its straightforward ingredients, achieving the ideal creamy texture poses a challenge due to protein aggregation from the cheese.

Scientific Investigation by Physicists

Physicists Giacomo Bartolucci and Ivan Diterlizzi, who miss the comfort of Roman cuisine, conducted a study to demystify the process. They built upon traditional Italian wisdom—using corn starch or potato starch to prevent cheese from clumping. Their findings, published in the Physics of Fluids journal, quantified the optimal starch concentration: “...there is a critical threshold of starch above which the sauce does not separate, and that's 1%. So if you go below 1% starch concentrations relative to the mass of the cheese, you get cheese clumps, and the ideal ratio is 2.5%” (06:35).

Practical Application for Home Cooks

Emily translates the study’s findings into a practical kitchen tip: “...if you're adding, let's say, 160 grams of pecorino cheese, first dissolve 4 grams of starch into your pasta water, and you will have a delicious sauce by the end” (06:55). This provides listeners with actionable advice to elevate their culinary endeavors.

Notable Quote:

Giacomo Bartolucci (06:02): “Grandma knowledge. In Italian kitchens, Grandma had somehow always a scientific attitude.”

This quote underscores the blend of traditional practices and scientific inquiry in achieving culinary perfection.

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3. Rising Colorectal Cancer in Young People

[07:11 - 09:08]

Shifting to a more serious topic, the episode addresses the concerning trend of increasing colorectal cancer rates among younger individuals.

Alarming Trends in Colorectal Cancer

Emily Kwong introduces the issue: “...cases have doubled in people under 55, and researchers don't know why” (07:19). This rise challenges the common perception that colorectal cancer predominantly affects older adults.

Link to Harmful Bacteria

The discussion highlights a recent study from the journal Nature, suggesting that the rise may be linked to Colibactin, a harmful substance produced by certain strains of E. Coli. Emily explains: “...colibactin can damage DNA and cause cancer mutations” (07:55).

Research Insights and Implications

Regina Barber details the study’s methodology and findings: “...colibactin left behind DNA mutations that were over three times more common in early onset cases than when people were diagnosed after age 70” (08:07). The research indicates that these mutations likely occur within the first decade of life, setting the stage for cancer development later on.

Future Directions

Emily notes the significance of these findings: “...the study doesn’t prove that colibactin is the sole cause, but it's a strong association and that knowledge is power” (08:37). This opens avenues for further research into environmental, lifestyle, and dietary factors that may influence microbial behavior and cancer risk.

Notable Quote:

Regina Barber (08:42): “With this lead, researchers can ask the big questions, like why those changes are happening, what other factors might be important...”

This quote emphasizes the study's role in paving the way for comprehensive investigations into the causes of rising colorectal cancer rates.

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Conclusion

The episode effectively intertwines diverse scientific themes, illustrating how everyday activities like gaming and cooking can provide profound insights into human behavior and health. By leveraging the familiar landscape of Minecraft, uncovering the chemistry in a beloved pasta dish, and exploring the microbiological underpinnings of a serious health issue, Short Wave delivers a multifaceted exploration of science in our daily lives.

Final Quote:

Emily Kwong (07:19): “All you have to do is listen to Short Weekly.”

This invitation underscores the podcast’s commitment to making science accessible and relevant to everyone.

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Credits: Produced by Erica Ryan and Rachel Carlson. Edited by Rebecca Ramirez and Patrick Jaranwattanan. Fact-checked by Tyler Jones. Audio engineered by Jimmy Keeley and Becky Brown.

Transcript

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[Emily Kwong]

Amazon One Medical, you're listening to Short Wave from npr. Hey, short wavers, Emily Kwong here and Regina Barber.

[Regina Barber]

We're here with our bi weekly science news roundup featuring the host of All Things Considered and fellow gamer, pinball wizard Wanna Saares.

[Juana Saares]

Hi, y'all. I'm so excited to be here. I hear that we were talking about how scientists use the video game Minecraft to study how humans learn.

[Regina Barber]

That's why we invited you.

[Juana Saares]

Thanks.

[Emily Kwong]

Yes. Yes. And then we're going to feed you a classic Roman pasta dish with some science on the side. Love it.

[Regina Barber]

Then we're gonna get a little serious with a possible reason why more and more young people are getting colorectal cancer.

[Juana Saares]

Truly a range of options today.

[Emily Kwong]

Yes. All of that on this episode of Short Wave, the science podcast from.

[Juana Saares]

Foreign.

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[Emily Kwong]

All right, Juana, our queen, where would you like to begin?

[Juana Saares]

We've got to start with the video game news, right?

[Emily Kwong]

Yes, definitely.

[Regina Barber]

Yes.

[Juana Saares]

It is now a very popular movie based, of course, on a video game that is especially popular among kids.

[Regina Barber]

Yeah, it's got very blocky graphics, calming music, and one of the goals of the game is to collect resources around this expansive landscape, mining, building materials, gems and food.

[Juana Saares]

Right. I'm familiar with this one, but I to know, what can it tell us about the learning process?

[Emily Kwong]

Yeah, it can tell us a lot about social learning. So learning in groups. A study in the journal Nature Communications tried to bridge this gap between studying how we learn individually and how we learn socially by watching over 100 participants with specific goals in crafted Minecraft environments.

[Regina Barber]

Specifically, the lead researcher of the study, Charlie Wu, said he was curious about the argument that human success is not only because of individual brains, but rather it's the power of our ability to.

[NPR Sponsor]

Learn socially and culturally from one another.

[Emily Kwong]

We're stronger together, Juana. Yes. And in the past, these two modes of learning on your own or mimicking another person were mostly studied in isolation. It was either one or the other.

[Juana Saares]

But I take it that is not the case in this study?

[Regina Barber]

No, no.

[Emily Kwong]

So in this study, researchers created a few scenarios where it would be more or less advantageous for Minecraft players to mimic other players to, for example, mine around the spot where they saw other players on their screen gathering gems.

[Regina Barber]

In scenarios, the rewards were clustered, which altered how much players had to interact with each other and learn socially. And what the researchers found is that the most successful players were the most adaptive, like switching between individual mining and using social learning when this situation called for it.

[Emily Kwong]

So Charlie and his team, they analyzed all of these scenarios, and they created a computer model that was able to take in what each player saw on their screen and predicted to a pretty good degree of accuracy how individual learning works in conjunction with social learning.

[Juana Saares]

Okay, but what does he mean by that?

[Regina Barber]

It means that individual learning and social learning are informing each other. And like, that flexibility between switching between both of them is, like, the key to being really successful, and that's actually new. And using Minecraft to find that is also unique, that looks really different from traditional psychology experiments. And it tells us something about the dynamics of social learning that we miss when we put people into really simple environments where they're choosing either to gather information firsthand or to copy someone else.

[Emily Kwong]

This is Natalia Velez, another cognitive scientist who didn't work on the study, and she pointed out something else that's cool about it. Video games are incredibly popular among kids. It's where they often meet up and build social connections they may not otherwise have.

[Regina Barber]

And it's important that research keeps up with these, like, modern social interactions.

[Juana Saares]

Very interesting. I also point out video games quite popular with me.

[Emily Kwong]

Yeah, same same with the three in this room. Also popular.

[Juana Saares]

All right, moving on to the next story. I'm very invested in, maybe because I'm hungry. It is about pasta. What are we talking about here?

[Emily Kwong]

Cacio e pepe.

[Juana Saares]

Yum.

[Emily Kwong]

So that dish, it's so good. It's that symphonic combination of pasta, black pepper, and pecorino romano cheese. It's a personal favorite of Giacomo Bartolucci and Ivan Diterlizzi, both physicists living abroad who miss the comfort food of Rome. And we're throwing these big dinner parties for other scientists.

[Regina Barber]

Go physics.

[Emily Kwong]

But the problem with cacio e pepe is actually that it's very, very difficult to cook. For a lot of people, this was probably like the very beginning of the problem, because it's difficult because you have protein aggregation.

[Regina Barber]

Yvonne is talking about how if a home cook is not careful, he can cause proteins in the cheese to clump together, which makes for, like, a stringy sauce that coats the pasta unevenly.

[Juana Saares]

You're really talking about the stuff of my Kitchen Nightmares here.

[Regina Barber]

Same.

[Juana Saares]

So how did they go about figuring out the secret to making a perfect cashew e pep with starch?

[Emily Kwong]

For generations, Italian grandmothers have known this. They have added corn starch or potato starch to the water to prevent the cheese from clumping. And it created this creamy, stable sauce that uniformly coated the pasta. Giacomo called it grandma knowledge. In Italian kitchens, Grandma had somehow always a scientific attitude. Right? So they were doing scientific methods. So Giacomo and Ivan, along with a whole team of scientists, decided to investigate the best way to add cheese to hot water. And they published their results in the journal Physics of Fluids. Truly news you can use.

[Juana Saares]

What did they find?

[Regina Barber]

So there is a critical threshold of starch above which the sauce does not separate, and that's 1%. So if you go below 1% starch concentrations relative like to the mass of the cheese, you get cheese clumps, and the ideal ratio is 2.5%.

[Juana Saares]

I am going to need a recipe. Emily, help me.

[Emily Kwong]

What does that mean when you're in your home kitchen, Juana, if you're adding, let's say, 160 grams of pecorino cheese, first dissolve 4 grams of starch into your pasta water, and you will have a delicious sauce by the end.

[Juana Saares]

Guess I'm headed to the grocery store next.

[Regina Barber]

Yeah, definitely.

[Juana Saares]

Okay, we've got to make a hard pivot here. Next up, more young people are developing colorectal cancer, and some new research may help us understand why. Emily, tell us more.

[Emily Kwong]

Yeah, so colorectal cancer is cancer that originates in the colon or the rectum. Many people think of it as something older adults get. But our colleague Will Stone has reported that in the last two decades, cases have doubled in people under 55, and researchers don't know why. So this recent study from the journal Nature suggests that this rise in young people with colorectal cancer could be related to a harmful bacteria called Colibactin that is produced by some strains of E. Coli in people's colons and rectums.

[Juana Saares]

Wait, so do a lot of people just have E. Coli just hanging out in their guts?

[Emily Kwong]

Some people do, yeah. And not all E. Coli produces colibactin, but when it does, that colibactin can damage DNA and cause cancer mutations. So they were curious about what the link was.

[Regina Barber]

And in this study, the researchers looked at samples from almost 1,000 patients around the world. And the researchers saw that the colibactin left behind DNA mutations that were over three times more common in early onset cases than when people were diagnosed after age 70. And they looked at the timing of these mutations and think they happen in the first 10 years of a person's life.

[Juana Saares]

Oh, interesting. So when people are pretty young, which I guess then would put people on track potentially to develop colon cancer in their 20s or their 30s instead of later in life, like we might think, potentially.

[Emily Kwong]

Yeah. The study doesn't prove that colibactin is the sole cause, but it's a strong.

[Regina Barber]

Association and that knowledge is power. With this lead, researchers can ask the big questions, like why those changes are happening, what other factors might be important, and if there are aspects of our environment, our lifestyle or diet, they may cause these microbes to behave differently.

[Emily Kwong]

Juana, thank you so much for coming on. Yeah, also have a great vacation that you're heading on shortly.

[Juana Saares]

Thank you so much. I guess I'll be listening to Short Weekly.

[Regina Barber]

That's right.

[Emily Kwong]

You can hear more of wanna on consider this NPR's afternoon podcast about what the news means for you.

[Regina Barber]

This episode was produced by Erica Ryan and Rachel Carlson. It was edited by Rebecca Ramirez and Patrick Jaranwattanan.

[Emily Kwong]

Tyler Jones checked the facts. Jimmy Keeley and Becky Brown were the audio engineers. I'm Emily Kwong.

[Regina Barber]

And I'm Regina Barber. Thank you for listening to Short Wave, the science podcast from NPR.

[Emily Kwong]

Foreign.

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