Well… I said VERY generally speaking. And as I’m defining a gradient of temperatures (clearly it’s not the same 30 °C than 38 °C), I’m also defining a gradient of “hot” sensations, from feeling a bit of heat in your body, to feeling like an oven. That’s the thing with generalizations. I’m not trying to be precise here, just give a general idea to those that are not used to Celsius (I’ve seen the same being done with Farenheit and found it useful). Cheers.