The production of heat comes from the formation of bonds, not from the breaking of bonds! Many people find this counterintuitive. The energy from combustion comes from the fact that all hydrocarbon combustion produces a large number of strong bonds in CO2 and H2O. Breaking oxygen bonds produces no energy and in fact requires energy - it's just that since oxygen bonds are weak it requires less energy than one might expect.
I have a Ph.D. in chemistry and I have taught general chemistry at a large research university and at a small liberal arts college. For what it's worth I teach this explanation and know of other colleagues that do, and the explanation is not novel to this article. That said, it's probably less well known and less widely taught than it should be. It's counterintuitive to many people that the formation of strong bonds results in the production of heat!
The MBTI asks you what your preferences are, and then tells you what you said. That's not "meaningless," but it's certainly not a tool for doing science.
For me, it's been meaningful in that it emphasizes that my preferences can be different from those around me, and that that is just fine. It's helpful to consider that some prefer to think for a while before speaking, even if that's not my preference because silence makes me uncomfortable. It's helpful to acknowledge that some people like to make detailed plans whereas I prefer to be more flexible and open to possibilities. The attitude of the MBTI is that neither approach is wrong but that it helps to recognize which approach you prefer.
Does each person fit comfortably into one of 16 categories? No, of course not. But it might be a useful framework for introspection and thinking about your relationships.
Edit: slightly changed wording