All jokes aside, I do think déja-vûs are a very interesting subject in this respect. Perhaps your dog just didn't get as many interesting "AI events" in his code as we have and chasing his tail isn't a bug?

Déja-vûs on the other hand could very well be bugs. Well perhaps not really since we can't really trust our brains in terms of exact memory either, but I've had numerous occasions where I thought 'hey, I've experienced or seen this before'.

If it's simply my brain processing the same thought twice resulting in this erroneous thought of having had a déja-vû? I don't know, but it's interesting nonetheless,

Cheers