[Udo]

Again, there is no "forever" in this universe. But this technology certainly holds the promise of a drastically prolonged existence, which may be unappealing to some.

> we will realize that we actually are just a program running on a brain

I think a lot of people realized this quite some time ago already, and they're fine with it :)

> it won't matter if we die.

That's a personal decision to make. It depends on your definition of importance, and whether you think that a mind can have value in of itself.