Let me translate
@thegenius 's post for you.
The "wizard" Roger is an old frequent flyer with COPD, hypoxia and an abusive attitude. The Lord of Oxygen and Life is Dr.
@thegenius, armed with an ET tube and "oxygen." Roger suddenly desats to 50% and goes apneic (this is the "knife" being thrown at Dr. genius). But Dr. genius being a genius (and Lord of Oxygen) turns that negative situation (knife) into a positive (ice cream cone) by intubating him and his sats come up to 95% (satisfaction, "eats the ice cream cone" yum). Then, Dr. genius realizes this frequent flyer with a bad attitude probably exposed him to COVID giving a 0.6% chance of dying. So, he doses his sedatives a little lower he normally would (this is the "knife" he throws back at him) but still in a range not to get himself in trouble with his CMG overlords.
See? Easy.