Arguing that the flynn effect shows that someone else should have a different opinion on the question of how much intelligence is heritable just shows misunderstanding of the meaning of the term of heritablity.
Otherwise it would be logical to say that all of intelligence is due to culture. Why? Let's say all individuals with IQ > 300 happen to be born past the singularity. Past singularity we have the technology to make people intelligent and therefore intelligence can't be truly innate.
Therefore modern biology defines heritability as the variance of a trait within a given population that's due to genetics. In it's essence the question of heritability doesn't only depend on genes but it also depends on the environment.
There nothing wrong with saying that the heritability changes over time. A society where every child can eat as much as it wants has probably a different heritability for IQ than a society where some children don't have enough food and other children who have wealthy parents do have enough food.




You aren't comparing the price of nuclear vs. the price of solar but the price of nuclear vs. solar + hydrogen.
By your own numbers the price of solar is 3$ per watt while the price of nuclear is 7$ per watt.
Your solar power plant that's backuped with hydrogen produces the energy at different prices at different times. While a nuclear plant can produce the same amount of power at night than at day it's not possible to change the amount that gets produced as fast as you can change how much hydrogen you burn in fuel cells.