We know the answer to my question yesterday, namely would the invasion go beyond the Donbas. The Daily Mail (U.K.) reports Putin's Russia is invading the balance of Ukraine, and people in the capital Kyiv report hearing explosions, most likely bombing or missile strikes.
That being the case, we'd better see some draconian sanctions as well as deniable cyber warfare sent toward Russia. Presumably there will be some negative consequences coming our way as well.
Putin has indirectly threatened nuclear warfare, and has the weapons and delivery systems to make good on that claim. I doubt he is MAD enough to go down that road, MAD being the acronym for mutually assured destruction. If he does, I hope to be far enough from the nearest blast zone to survive, though there are no guarantees.
Strap in and hang on, the next months will be a bumpy ride.