Edit: didn't notice philosophy section - this might be more appropriate there. My bad, please move if necessary.
One could argue that, due to quantum states within the brain, every moment in time our minds make an infinite number of different choices, thereby creating an infinite number of different realities every planck moment. I would argue that the only realities which sentient life experiences are those in which we, in the future, create a simulation of our own universe using starting conditions of the big bang (after 1 tP perhaps). This would conveniently be possible using quantum computers.
The likelihood of us existing is approximately zero, but in an infinite sea of information anything that is possible happens. We talk about our likelihood in terms of physical events but we ignore concepts such as choice and belief. There have been so many unlikely coincidental evens in human history, such as similar myths and strangely accurate predictions. For the first time in human history we are now able to destroy ourselves and eliminate our chance to create ourselves through simulation. Once we do create ourselves through simulation our existance will no longer be essential as we would have created an additional universe within our own. This leads to an infinite fractal of universe within universe, each being identical at the moment which a simulation accurately leads to the present moment in time.
I would argue that there is an extremely thin band of possible choices and events in history which lead to us surviving long enough to simulate ourselves, so in that time we exist in a thin band of realities. After we have simulated ourselves reality flares off into an increasingly wide range of realities, all of which lead to our eventual extinction.
Before we create the simulation we need to make sure that our future is secure. If we do not then there are a very wide range of realities which lead to our quick extinction rather than long term survival.
First post, thanks for reading. Please let me know if my thinking is totally off and how. I have little experience with physics other than a degree but I love thinking about this stuff. I plan to write a book in the next five years with all proceeds going to charity. I also have ideas regarding fundamental reward systems built into our psychology and I'm interested in making a connection between quantum physics and psychology.