First meme here

I did the math:

Room temperature is often defined as 20 degrees Celsius (although I remember it being 23C in some old textbooks).

20+16.6 is 36.6 which is the normal temperature of a human body.

20+18.6 is 38.6 which is above normal temperature, i.e. fever.

AFAIK ~42.0 degrees is lethal.

F=1.8C+32 but for anyone else too lazy to do the math since the Americans are awake:
I did the math:
Room temperature is often defined as 68 degrees Fahrenheit (although I remember it being 73.4 in some old textbooks).
68+29.9 is 97.9 which is the normal temperature of a human body.
68+33.5 is 101.5 which is above normal temperature, i.e. fever.
AFAIK ~107.6 degrees is lethal.
- Who the hell keeps their house at 68F?! 74-78 is my preferred temp but I can cope all the way to 85. But you turn that below 70 and we're gonna have a problem (both in the "I'm fucking cold, bitch" sense as well as the "do you own the electrical company or something? I didn't know you're a billionaire")
The normal average temperature for a human body. Some people run slightly hotter or colder than that.
For example, my body naturally runs slightly colder than that, almost an entire degree colder, but it's normal for my body.

Say what you want, but a fever knocking you out and having you dream weird stuff is the best part about being sick

That's like saying the best part of being interrogated is the waterboarding because it's refreshing
- Getting decapitated really got a weight off my chest!
- "waterboarding in Guantanamo Bay" sounds like something fun
Have to agree, felt the need to wrap up warm when I was ill once, went to sleep and it was the best sleep in my life. Woke up drenched in sweat and hot as Satan's crack but the sleep and dreams were great
I've never had a fever this bad
- Really? You're missing out.
  They're not called fever dreams for nothing.
- I had 41C when I had pneumonia. I was delirious
Call me crazy, but the fever wank is a great wank. You feel so cleared out, and it helps you sleep and recuperate.

The ambient temperature needs to be significantly lower than body temperature though, because your body is constantly generating heat that has to be dissipated. 36 °C is too hot for a human for long stretches of time.

Edit: And the post doesn't seem to be about ambient temperature at all.

Whenever people say that 2 degrees global average temperature increase is no big deal, I usually remind them that 2 degrees is the difference from regular body temp and being incapacitated in bed.