Legendary memeworthy exchange. 
@Massive_One, the point is not about feelings, it's about measurements. Anything hotter than about 50°C is what "humans" feel is scalding hot, and you'll reflexively remove your hand. Engines thermostats come in 82°C, 88°C, etcetera. Catcons warm up at around 300°C. How would you ever be able to feel that?
There are regulatory agencies that ensure anything that operates at this temperature or hotter has a warning phrase or graphic on it, because a Myers-Briggs intuitive-sensitive-feeler will want to lovingly take its temperature.
This is why measurement instruments exist. The engine cannot feel and tell you whether it's at optimum operating temp.
To your credit, though, you're right about the gut feeling. If your engine seems extra hot but your gauges tell you everything is fine, it's a good idea to find another instrument to compare readings with. An external IR temperature gun, a thermocouple, another water temp sender, anything that you can use while (critically) being aware of their individual limitations for precision and accuracy.
