A: It's a temporal singularity where all timelines, parallel and otherwise, merge into a singularity of utter chaos and confusion. Don't worry, it's just a Tuesday.
A: Dr. Brinkey is always there, sipping on a glass of fine scotch and adjusting the space-time continuum with a flourish.
A: Probably not. The convergence event tends to displace sentient beings from their original timelines, but don't worry, your cat will likely end up in a parallel universe where it's a cat of immense power and wisdom, ruling over a kingdom of laser pointers.