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.
Do you have sources or books recomandations ? I’m a big fan of hard Science fiction and scientific vulgarizations. The books from Hawkings “a brief history if time”, “universe in a nutshell”, etc… where mind blowing.
I don’t read books about the paranormal because I think it’s one of the ways to grift money
Another point I want to make is that these authors might not be good writers
Core information
Communion - Whitley Streiber, basically core mythology for things like abductions or experiences
UFOs and Nukes - Robert Hastings, essentially a record of events that hint a link between UAP activity and nuclear sites, nuclear technology, rockets
Any book by Richard M. Dolan, he’s by far the most level headed and probably the only true historian in the field. He also has a YouTube channel where he goes through cases he believes have value, and typically his format is about linking memos or documents with events to prove that there’s something to the case.
There’s a lot to say about the authors but I think forming your own opinion is more valuable
Now for some books that I would only recommend to people with very high interest
An alien harvest - Howe L M, probably their best work and in wouldn’t dig much deeper into their stuff from here. The author is particularly interested in cattle mutilation and similar events
Any Missing 411 book - David Paulides, take your pick depending on what you find most interesting
Skinwalkers at the Pentagon - Colm A Kelleher, best going into this one blind as there is a lot of high strangeness which might throw people off
Jacques Vallee gets a good rep in the ufo community but his books are really poorly written IMO. If you don’t know who this is looking into him could be a good start for valuable information.
For a list authors to be cautious about:
Tom DeLonge, wrote some stuff, poorly written, allegedly it is fiction but supposed to reflect real non fiction events to bypass NDAs and whatever. No comment.
Chris Bledsoe, no comment, should be obvious what I’m thinking.
Ross Coulthart has good information but his books are tainted because he’s a believer. I prefer when authors gather data and curate it to present it, but not when authors believe every shred of information presented to them.
Diana Palsulka, Bob Lazar, Jeremy Corbell