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The following podcast contains explicit language.

It's Thursday, August 28, 2014. From Slate, it's the GIST I'm Mike Pasca. Be they scattered

pictures of the smiles we left behind or left alone in the moonlight, memories are a powerful

force that drive informed console or haunt us. They can awaken you at night. They can

allow you to remember the time you knew when happiness was.

And now they can be reversed for just 1999. Add extra for us proofing and undercoding.

No, it's not the eternal sunshine of the spotless mind. It's a new experiment done by researchers

at MIT. It was published yesterday in nature, the journal nature. Not just published in nature,

like thrown in a forest. They put it in an actual magazine.

So with apologies to the cats that we have been quoting a second ago, the experiments

were done on mice and the scientists successfully rerouted the circuits of their brains and

they changed bad memories to good ones. How can scientists tell mice now have good memories?

Well in surveys afterwards, the mice reported how awesome it was when the scientists rewired

their brain circuits. Yes, at one mouse, looking back, I can recall my scalp being split

with a scalpel and electrodes running into my brain. It seems like a really fun time. You'd

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