A lot of answers to this question so it depends which layer you are talking about.

Functionally,I'd say a key difference is that it's probably easier to perform general computation with a computer than to achieve the same goal using a stone.

If the computer is functional, powered, and connected to some some kind of interface allowing you to use it (e.g. network, touchscreen, desktop setup, etc.), then sure you can use it to perform general computation. But if its unpowered, is there any real difference between a stone and a computer in a debate about consciousness?

So because you eventually die, it means that you were never alive? The weights of an llm obviously don't have consciousness. It's the process that potentially has it.

Are you conscious on a nanosecond timescale?

> So because you eventually die, it means that you were never alive?

I said nothing of the kind. I can only assume your question in response to my comments mean you think a powered computer is alive. I'll challenge that on the basis that a computer can generally maintain its state without power just fine. Shut it down, unplug it. Wait a day, a year, a decade and plug it back in. Assuming the hardware didn't degrade to the point of failure you can turn it on again and it will be in the same state you left it in before you unplugged it. Is it alive while its unplugged? Or is it simply not alive whether its plugged in or not?