In-depth interview (French) of Jean-Christophe de Mestral on reinventing nuclear energy with Thorium

Wood to Coal, which means medieval to industrial civilization, was a 2x improvement in energy density.

Coal to Nuclear Fission is a 3,000,000x improvement in energy density

If a 2x improvement can deliver us the abolition of slavery, the end of child labor, the empowerment of women, free and universal education, amazing improvements in life expectancy, and fabulous scientific advances among which quantum physics and astrophysics, then what could 3,000,000x improvement in energy density bring us ?