What is real? How do you define real?

I mean, I haven’t had the torque wrench calibrated a split second before the wrench was applied to the faucet handle by state and federal members of the Department of Weights And Measures, but the print bed is hot to the touch when it’s finished printing, yet it doesn’t burn my skin like the one time in A&P school when I set my welding filler rod down over my pliers, then reached to pick up my pliers, burned my thumb on the welding rod and smelled it before feeling it because at the temperature steel melts your nerves die faster than they transmit pain signals…I strongly hypothesize my bed heater is functioning correctly.