Interesting topic : ) I remember there are some theoretical discussions on this topic in a forum of scientists. Some of them mention that we may be living in a virtual world indeed, because everything in the universe seems to be governed by math equations. So then if we can't define existence, it's hard to say about death : )
That seems very much more than philosophical and goes to a theoretical level! However considering they're just unproven propositions, after all we can't verify whether it's true, and I'd say they are philosophical "scientists".. not sure if its really science!
Thanks for sharing :)