We are the only life form of the univers. Not even the only intelligent, but the only one. My arguments are:

Life is absolutely everywhere on earth. There is not a single isolated island or deep trench in the ocean that is not covered by life. If life can live elsewhere, univers would be covered by life. Some bacteria would have been ejected into space by some cataclysme and had colinized nearby planets. Kind of Fermi's paradoxes.

Antropic argument. Our universe is suitable for life because if it weren't, we simply wouldn't be there. Add it to Okam razor. If a smaller, simpler, universe could handle life, we would be in that one. Not our current one.

"Our universe is so huge, so there must be other life form" is not the right statement. Our universe is so huge because it is the smallest universe where life could potentially appear.

Only my opinion, not a scientific demonstration.

Hi,

I'm an engineer in its late 30s and I sometime go to high-school talking about my job, my scholar background, etc... I remember being very stressed about my future at that time, so I try to tell them what I wish someone had told me 20 years ago.

If any teens are reading this (or people in contact with teens), what topics or advice would you want to hear from some random dude like me ?

Thanks for your help

ps: I know most of lemmy users are middle age, but there is no way I create account on shitktok, Insta or stuff.

I think you know the simulation hypothesis. Our universe could be a simulation created by... well, let's call them "gods".

But, if the simulation continue, we, humans, may reach the point where we could create a simulation of our own universe. In which, the simulated people would reach the point where they simulate their universe, etc...

So, as a corollary, it is not possible to simulate the entire universe, because this imply simulating an infinity of entire universe. It is only possible to simulate a simpler, smaller universe at each "layer".

So my question, are we at the top of the stack, or at the bottom ? Which would imply a much bigger and much more complexe universe above us.