I don't believe there's nothing, because of experiences I've had after loved ones passing that sent me down a rabbit hole of investigating / exploring spirituality.
I have always been agnostic leaning, the idea of spirit/soul/source vs nothing, can't be fully proven or disproven - I understand both skepticism and faith as a result - both come down to choice and belief.
I know what I "hope" happens. I also know I could be wrong. But if there's nothing when I die, I'll be none the wiser. So I choose to believe because it gives me some small comfort whilst I navigate the hell that is human existence.
My experiences could very well be the product of my own subconscious/imagination based upon my desires to reunite with people I loved very much. They could also be actual contact. I have no way to prove or disprove, either way. So I choose the latter, although question myself if the former.
Since I was a child, before I ever knew what reincarnation was, before I ever read or researched anything, I've had recurring dreams - hugely detailed dreams - in ways people talk about "past life regression". I remember asking my friends when I was around 10 years old - do you ever meet someone, or go somewhere - someone you've never met before, or someplace you've never been or seen on tv - and it's familiar? You know the person, or the place, you remember things but they're not "your" memories? I think I was describing de ja vu without the terminology.
It would happen a lot when I was younger too. Or I'd dream something, and then it would happen - sometimes months, even years later - but the event would trigger the memory and I'd then recall that actually, I dreamt of it.
I don't know how it all works really, and I don't consider myself psychic, or a medium, or anything like that. I just think there's an awful lot more to consciousness than our understanding, and a lot more than science has been able to touch upon.
But centuries ago, the advances in science we take for granted today would be thought of as demonic or witchcraft. So who's to say what will be discovered, proven and accepted in centuries to come.
Also, I don't believe in "God", "Satan", or any concept of traditional religion. Commonalities existed across all cultures long before those cultures ever interacted with each other, yes. But religion as we know it today is to me a man made invention as a tool for control by the corrupt. An excuse to cause destruction and divisiveness.
My own personal beliefs have nothing to do with divisiveness.
It's a topic of interest to me though, but I think it can often become heated. I prefer to consider all possibilities, respect everyone's personal views, regardless of whether they align with mine.
Most people think mine are cuckoo for coco pops.