We are stardust...and before we all burst into song maybe we do go back to nothingness eventually in however many billions of years when the universe ceases to exist however at this point in time (whatever that may be) our energy and consciousness returns to source/universe collective consciousness to be redistributed

How long did everything exist before you were born? Remember any of it? Or were you born and slowly gained consciousness and sentience? Boom. Lights out. You won’t care because you can’t care. Feelings are a product of complex biological systems working in harmony. Like a bucket of rocks can’t care about anything because it doesn’t have a brain, much less a functioning one.

TL;DR: Your corpse will rerun to its natural elements and your consciousness ceases to exist.

How long did everything exist before you were born? Remember any of it? Or were you born and slowly gained consciousness and sentience? Boom. Lights out. You won’t care because you can’t care. Feelings are a product of complex biological systems working in harmony. Like a bucket of rocks can’t care about anything because it doesn’t have a brain, much less a functioning one.

TL;DR: Your corpse will rerun to its natural elements and your consciousness ceases to exist.

I thought this was another question about sex.

Worm food !

Same as you were before you were born, except hopefully you will have made a positive difference in the world and people will remember you fondly, or you might leave a legacy behind for others to build upon.

The unknown is so much larger than the known so it's hard to guess. It's like if someone set a box in front of you and asked "What do you think is inside?" but the box has no defined size, weight, or any other measurable characteristic. You just know the box exists. Pretty much anything could be in it, but knowing isn't possible. So the only thing that you can conclude is there either is something, or nothing, in the box.

You rejoin the nothingness you were before you were born.

Consciousness is fascinating really...And you will always get the worms crawl in and the worms crawl out sort of biting responses to this question because so many people on here associate any talk of what happens after death with theistic ideas. I think about how seasons repeat, cycles, the way stars collapse and reform, and how different the earth is from space. I feel like trying to see what will come after death is like trying to see a very big tapestry and that it would take a very long time to notice all the intricate designs. What do you think is happening right now? How aware are we in any given moment of what is happening in life?

you rot and become plant food

Our bodies decompose and hopefully, become fertilizer for plants and trees. The end.