What do you think happens when atheists/agnostics pass away

isnt that controversial. general consensus is that what happened before we were born (something we cannot comprehend) will happen after we die. we can't really understand the idea of not thinking, as to process the idea is to think and so it kind of is one of those things you have to accept as there will always be things we cannot understand out there 

Prob get buried/cremated like anyone else. I do find it odd that everyone who has (in my real life) a  "celebration" funeral is atheist and the more grief type, everyone in black type, traditional funerals have been Christians. Imo should be the other way round.

They reincarnate into a twink.

The same thing that happens to everyone, unless you fall for that whole "go toward the light" stuff, in which case you'll find yourself exiting the birth canal again.  See, we are energy, pure creative energy, which is the creator of all. This is why our bodies look and act like complicated electrical systems. This is why when you "flat line" they hit you with an electrical shock. This is why you will get sick or "die" if your electrolytes are too diminished. And, energy can be neither created nor destroyed, it just IS. It can only be transformed. You are living in your current "transformation", which is within the human experience.