> who wouldn't want to witness and be a part of a new world?

Me?

This view is grounded in the assumption that the future will be better than today. There is no guarantee of that. This is, in my opinion, the same flaw in the thought process of wanting to live forever. The assumption being that, this "new world" is a better place than where you are now. That it is compatible with you as you are. That you will never grow tired of existing.

I know for a fact that I will grow tired of existence. Why would I want to continue it? The bar is very high for me to want to continue to exist in a "new world". I would need guarantees that the world will be a better place where I can thrive in ways I can not in this one. That I will be accepted in this "new world".

Can anyone guarantee those things?

I can recommend the comic “Transmetropolitan” by Warren Ellis, which deals with this and many other questions.

You have to imagine what it would be like for someone who lived in 1826 too wake up today, in a world where nothing they know is relevant, they have no connections, no idea what to do with any of it. Historians might want to interview you, or the first couple of people like you, but then what?

You will be an audience member to a show you don’t understand, until you die.

I just got an app idea