michio_kaku.md (767B)
1 # Michio Kaku 2 3 Michio Kaku adapts the Kardashev scale to describe how advanced civilizations 4 are by the amount of energy they can control: Type 0 (like us) uses limited 5 planetary resources such as fossil fuels; Type I can harness all energy 6 available on its planet; Type II can capture most of the energy of its star; and 7 Type III can use the energy output of an entire galaxy. On top of that, you 8 could imagine a speculative Type IV civilization that harvests energy embedded 9 in the fabric of the universe itself, such as the ubiquitous dark-matter or 10 dark-energy–like fields between galaxies, and a Type V that somehow taps into 11 energy sources outside our own universe “grid,” drawing power from a 12 higher-dimensional or multiverse realm beyond our spacetime.