It is possible that machines have already begun to think, and it is possible they have begun not to recognize us.

Sorry, I don't see at all how this (final and therefore important?) sentence relates to the rest of the post.

Nor can I interpret it clearly without knowing whether for you, Inselpeter, 'think' necessarily implies consciousness and what you mean by 'recognise'. Be able to identify as an object? Be able to identify as a living thing? Be able to identify as having valid needs and requiring some sort of respect?

BTW I read in flat mode and the other posts so far haven't helped.