I will explain this as simple as possible and i hope it makes sense. Smart people will understand my point. I hope i get my logic accros.
1. There's no way to prove that we're or aren't living in a simulation. (death?)
2. There isn't much difference between real life and GTA (other than the ridicolous thinks you're able to do in the video game GTA)
3. Therefore, life could be a game but we're restricted by laws and rules for obvious reasons, to survive and live together as the human species. It's possible to use dimensions and perception to prove it too (try going outside and focusing on a tree while walking towards it or sideways, proving the 1st person view point we have).
4. You would be your own character (yourself). You would have skills (intelligence for students/school/work, agility for sports/athletes for instance, charisma for talking, exchange etc)
5. In this game called life you would just be human living on Earth. Just like in GTA.
6. Society and the world would basically be exactly the same lol so even knowing that life is a game wouldnt temporary change anything.
7. Real life has the same "game mechanics" as GTA as well, interactions with other humans (concept of society). Money in exchange for goods (concept of money). Difficult situations (concept of life).
Regarding the choice of GTA as a comparison, it is the most realistic game i could actually compare real life with. Minecraft was a 2nd choice. Please be rational and open to this idea.
Added (1). I'm just a 19 year old guy exploring fun thoughts i've been thinking about. So don't think that i actually believe that we're living in a game.
Added (2). To avoid confusion. Logic, Biology & Physics still apply. The idea behind this post was "what can humans gain from thinking or knowing that life is a game?" Not to live life like a video game.
Added (3). Here's an example: You're walking in a straight line. You take a turn around a corner. Once you pass the corner a random car is driving on the road. From your perspective it would be impossible to prove that that car didn't spawn while you were taking the right turn. How do you know it was there from before?
Read more: Could life be a game? Literally?