Ideal weight: Flying dwarf computation
So try a little bit with the weight example before You go to the next lesson. It is necessary to rip down all wrong computation methods before You learn about solar architecture
Some computation methods are used in a long period of time. It seems to be everything okay with the computation. Everybody is using the method. Nobody thinks about it. It is some type of common knowledge. It is a most times a total unproven knowledge. Common knowledge is most times only tested with common values. Common knowledge is most times total untested with extreme values.
Most humans are between 150cm and 190cm tall. The range between 150cm and 190cm are common values. The computation method "size minus 100 times 0.9" works good in this common range.
Working with extreme values proves immediately: the computation method is total wrong. The ideal weight of a dwarf is not below zero. Dwarfs don't fly because their ideal weight is less than the weight of the air.
Maybe You are an architect filled with "Flying dwarf computations". All this wrong computations tell You that solar energy is to expensive in the same way as dwarfs should fly like a ballon. So try a little bit with the weight example before You go to the next lesson. It is necessary to rip down all wrong computation methods before we can really educate You towards solar architecture.