What is a Scientific Fact, that while you know it has been proven true, still seems impossible?

@RickiTarr There's a species of jellyfish that is "biologically immortal”.. in the absence of predation or disease, they can basically regenerate forever.

https://en.wikipedia.org/wiki/Turritopsis_dohrnii

Turritopsis dohrnii - Wikipedia

@FlagrantError @RickiTarr there's also a human cancer that's been alive and growing since the 1950s that's immortal.

https://en.m.wikipedia.org/wiki/Henrietta_Lacks

Henrietta Lacks - Wikipedia

@WagesOf
I get a little upset every time I think about the ethical concerns around this.
@RickiTarr
@WagesOf Just like Keith Richards, who has been alive and growing since the 1940s and is immortal!

@FlagrantError @RickiTarr