[esailija]

It depends what you mean by confirm.

You can raise the bar for confirmation so high that you cannot confirm that you even yourself are not an automation. And you can lower the bar so that other humans are considered sentient.

But in the end, it is only about arbitrary decision where to place the bar for confirmation.

[jiocrag]

How could we possibly ever test for "not feeling like an automaton?" The only possible test, it seems, is internal subjective experience. Even if something reported this, how would you ever verify it?