00:00Your heart is an illegal immigrant in your own chest.
00:04You think you've been saved? No.
00:07You've just declared a molecular war.
00:11Welcome to Border Control.
00:13Your white blood cells don't see a life-saving organ.
00:17They see an invasive stranger.
00:20It's the ultimately biological identity theft.
00:23Your immune agents are performing a relentless microscopic interrogation,
00:30checking every cell for its biological papers.
00:33And they have determined that this stranger has the wrong papers.
00:38The order has been given.
00:40Eliminate the target.
00:42Here is the biological hack.
00:45This isn't just a rejection.
00:47It's a failed biological passport check.
00:50Meet the MHC.
00:53Your body's unique genetic fingerprint.
00:56It's the document that proves you are you.
01:00The immune system is just doing its job,
01:03rejecting anyone with the wrong papers.
01:06But we can outsmart evolution.
01:09We use life-saving medicine as biological diplomacy
01:13to temporarily mute the border agents.
01:16We trick your body into accepting a stranger's heart,
01:20turning a death sentence into a gift of life.
01:24Evolution demanded the stranger die.
01:27We decided you get to live.
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