not taking anything away from the skill of the flying - a demonstration of skill ? .......... and no offense to the poster
but ............ a lot of this stuff on UTube (or whatever) is contrived - at 0.37 the pilot has paper, a pen and a tape measure ................ no less ................ a mathematical calculation to determine (please fill in blanks)
Contrived describes something artificial, forced, or unnatural, often appearing carefully planned rather than spontaneous or genuine. It usually implies a negative, disapproving, or "fake" quality in plots, excuses, or situations. Synonyms include artificial, forced, stilted, unnatural, engineered, and affected