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Small-Scale Question Sunday for September 04, 2022

Do you have a dumb question that you're kind of embarrassed to ask in the main thread? Is there something you're just not sure about?

This is your opportunity to ask questions. No question too simple or too silly.

Culture war topics are accepted, and proposals for a better intro post are appreciated.

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Anybody know if /u/self_made_human or other transhumanists made it over to the new site? I know it's a small part but the transhumanism discussion here has been one of my favorite aspects of the community.

Have we figured out robot hearts or lab grown hearts yet?

Didn't Jarvik make a robot heart a few decades ago?

Doesn't count as "figured out" until we make a robot heart that doesn't suck. Making a working pump isn't hard, but making one that won't clot blood and won't trigger immune rejection (and won't limit mobility and won't fail to deliver enough O2 when you exercise and won't be too big and won't ever break and...) seems to be much harder.