41:I[185,["/_next/static/chunks/3xnt26d00_zk-.js","/_next/static/chunks/0gtn0si1crxii.js","/_next/static/chunks/42spz6paskvb6.js","/_next/static/chunks/06x30xgfe6iur.js","/_next/static/chunks/1pfyc3q3c61jb.js","/_next/static/chunks/35-gbipsuw5b6.js"],"SendEmailButton"] 43:I[63625,["/_next/static/chunks/3xnt26d00_zk-.js","/_next/static/chunks/0gtn0si1crxii.js","/_next/static/chunks/42spz6paskvb6.js","/_next/static/chunks/06x30xgfe6iur.js","/_next/static/chunks/1pfyc3q3c61jb.js","/_next/static/chunks/35-gbipsuw5b6.js"],"AddToLibraryButton"] 44:I[29721,["/_next/static/chunks/3xnt26d00_zk-.js","/_next/static/chunks/0gtn0si1crxii.js","/_next/static/chunks/42spz6paskvb6.js","/_next/static/chunks/06x30xgfe6iur.js","/_next/static/chunks/1pfyc3q3c61jb.js","/_next/static/chunks/35-gbipsuw5b6.js"],"ShareButton"] 45:I[58016,["/_next/static/chunks/3xnt26d00_zk-.js","/_next/static/chunks/0gtn0si1crxii.js","/_next/static/chunks/42spz6paskvb6.js","/_next/static/chunks/06x30xgfe6iur.js","/_next/static/chunks/1pfyc3q3c61jb.js","/_next/static/chunks/35-gbipsuw5b6.js"],"ProcessEpisodeButton"] 46:I[45269,["/_next/static/chunks/3xnt26d00_zk-.js","/_next/static/chunks/0gtn0si1crxii.js","/_next/static/chunks/42spz6paskvb6.js","/_next/static/chunks/06x30xgfe6iur.js","/_next/static/chunks/1pfyc3q3c61jb.js","/_next/static/chunks/35-gbipsuw5b6.js"],"SignupCTA"] 3a:["$","div",null,{"className":"flex flex-wrap items-center gap-x-4 gap-y-1 font-mono text-[12px] uppercase tracking-[0.1em] text-[color:var(--fg-3)]","children":[["$","time",null,{"dateTime":"2022-03-23T08:00:00.000Z","children":"March 23, 2022"}],["$","span",null,{"aria-hidden":true,"children":"·"}],["$","span",null,{"children":"00:37:01"}],false]}] 3b:["$","p",null,{"className":"max-w-[60ch] text-[18px] leading-[1.5] text-[color:var(--fg-2)]","children":"For thousands of years, there have been four basic tastes recognized across cultures."}] 42:T425,

For thousands of years, there have been four basic tastes recognized across cultures. But thanks to Kumiko Ninomiya (a.k.a. the Umami Mama), scientists finally accepted a fifth. So could there be even more?

This is the fourth episode of our six-part series, Making Sense.

For more, go to http://vox.com/unexplainable

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