Re: (ReacTor) Five SF Novels About Rediscovering Ancient Tech

On 5/14/2024 3:47 PM, Christian Weisgerber wrote:

On 2024-05-14, Paul S Person <psperson@old.netcom.invalid> wrote:
 

So, like the car in /The World's End/, it is the same in one sense,
and yet not in another since almost everything has been replaced.

 Aka "Ship of Theseus".  People have been philosophizing about this
for at least two millennia.
 

I've read that there was a medieval idea that all the material in
a human's body was replaced over 7 years, and that this is where
the notion  that 21 should be the age of majority came from.
pt