A Dyson sphere is a hypothetical megastructure that encompasses a star and captures a large percentage of its power output. The concept is a thought experiment that attempts to imagine how a spacefaring civilization would meet its energy requirements once those requirements exceed what can be generated from the home planet’s resources alone. Because only a tiny fraction of a star’s energy emissions reaches the surface of any orbiting planet, building structures encircling a star would enable a civilization to harvest far more energy.
I don’t remember the math, but you lose return on investment after a certain percentage of coverage.
Dyson Grids are the future!!! 😜
The other “benefit” to the sphere is blacking out a star. Other life, should it exist, is less likely to find the structure.
Ouh! Love me some “Dark Forest hypothesis” existential dread 😁
Wouldn’t we cook in the end if you don’t let out residual em?
Or DYson Bubbles, which would also “cover” enough “surface” to be viable without needing god knows how many planets’ worth of material