Galaxy-scale energy consumption in 2400 years seems improbable due to the speed of light limit (Milky Way is 150,000 light-years in diameter).
Exponential, like say 1% yearly growth, must eventually end.
Stein's Law.
Galaxy-scale energy consumption in 2400 years seems improbable due to the speed of light limit (Milky Way is 150,000 light-years in diameter).