The old blog post on Penguin Logic gets new material all the time. Some examples connecting to recent discussions:
- We assume that circulation is generated by a sharp trailing edge of a wing, and then obtain lift from circulation. We observe lift and conclude that lift comes from a sharp trailing edge and we therefore require wings to have sharp trailing edge. The fact that a real wing does not have sharp trailing edge is muffled.
- We assume that CO2 is a greenhouse gas with the effect of global warming of 1 C upon doubling. We observe global warming of 0.5 C and conclude that the warming comes from CO2.
- We assume that radiative heat exchange between two bodies is two-way carried by little photon particles with net transfer from warm to cold. We observe net transfer from warm to cold and conclude that radiative heat transfer is two-way carried by little photon particles.
Penguin logic is a strong tool with strong attraction and thus is widely used in science.
Penguin Logic is one of Aristotle’s non sequitur logical fallacies: