I'm with you on Potter but I wonder how Floyd survived so many nights of sleep if just laying down would have killed him.
The least important answer to that is to remember that lots of people die of cardo-pulmonary events when just resting. The much more important point, however, is to remember that GF simply hadn't been resting when the trouble started:
a) George Floyd had downed a large quantity of Fent in his car prior to the original cops getting him out of his car...perhaps to hide the evidence.
b) GF then became highly agitated and fought cops for 15 minutes, refusing to enter or stay in the Police car. The exhausting fight ended when the Police gave up... during which time he constantly claimed he couldn't breath while fighting to stay out of the car.
c) GF was then restrained by being put to the ground. His complaints did not stop, and the rest we know.
He had a badly enlarged heart, which requires far more oxygen than normal hearts especially when exertion demands it. His two major vessels were 75 to 90 percent blocked, which means far less blood flow to a enlarged heart demanding oxygen. Fent vastly decreases heart rate and the lethal levels he took added to the heart stress. His history of BPreesure was higher than mine, when my own doctor said I was a ticking time bomb that needed immediate beta blockers.
The problem here is that every symptom Floyd had, including those starting before being put prone, are the same as someone whose breathing is seriously impaired by a physical act (assuming that it was physically impaired) ... and, even his foaming at the mouth is a symptom of a FENT overdose (his history of mouth foaming after taking drugs noted by his girlfriend in testimony).
So it's not a surprise that when the ME was asked if GF had been found in an easy chair with the same symptoms, would the subsequent medical exam show it was from a homicide...the ME said no, it would just be a drug overdose with complicating conditions.
That is one of the primary reasons I do not believe that Chauvin killed Floyd beyond a reasonable doubt. It's impossible to know. He may have, he may not have. GF's breathing may have been substantially impaired by physical force, or it may not have.
And two of my primary reasons to believe that it was Chauvin is
1) Floyd was under his care as he was handcuffed (which is already a restrain) plus three other officers were present to assist so kneeling on his back, neck, or whatever for that length of time wasn't necessary.
and
2) after Floyd became unresponsive Chauvin continued to kneel on Floyd for an additional (I'm estimating here) 3 minutes.
Now, If you may. look at your watch for 3 minutes. Someone was in need of medical attention within that time frame.