The quickest rundown/tl;dr I can give for the topic- mostly because it is a morbidly hilarious rabbit hole on an ongoing shitstorm:
Some rich dude built a the equivalent of a sewage drain pipe with a window with "diversity and inspiration" piloted with a mad catz knockoff looking usb game controller. Charged $250k GBP (edit; they paid in bong dollars lmfao) to ride in it (only up to 5 people including himself). Communication with this vessel was lost like a day or two ago due to some sort of failure. This """submarine""" is assumidly now stuck 15 thousand feet underwater by the Titanic's ruins because it's the shittiest fucking deep-sea vessel ever conceived. Nobody knows if we can get these rich dudes out from that depth safely. They had like 40 hours of oxygen left (they did not install a way to renew oxygen for long periods of time) yesterday.