[godelski]

I don't think anyone in the astrophysics community thinks we're alone. But the physics also suggests that unless they are extremely common it's unlikely that we'll ever detect any (let alone meet any). So practically we are alone.

Outside the astrophysics community the majority of scientists I know also believe in life but similarly don't think we will detect/meet them. But there are some that don't believe (I don't know a single person in hard science that thinks we're alone but I do know engineers and those in soft sciences that reject the notion).

[lovemenot]

This doesn't refute what you said.

Cool Worlds is an excellent YouTube channel presented by an Astrophysics prof.

He recently gave an even-handed presentation of both sides, but on balance, he comes down slightly on the side of Life is unique to this planet.

https://youtu.be/iLbbpRYRW5Y