Case study from Orions Arm - the Turing dyson swarm: https://orionsarm.com/eg-article/49125f5d1c049 https://orionsarm.com/eg-article/49125f5d1c049 Effectively

Case study from Orions Arm - the Turing dyson swarm: https://orionsarm.com/eg-article/49125f5d1c049 https://orionsarm.com/eg-article/49125f5d1c049 Effectively turning 2 class A white stars, 8 times as bright as Sol into computers, power plants and fuel for them, good for the next 14 trillion years: "Power spheres take the place of the more commonly used central star of most solar systems, but are far more efficient. The average Sol-type sun will convert only a tiny fraction of its total mass into energy in the course of a lifetime of approximately 10 billion years. The Power Sphere network of Turing is designed to provide an amount of energy equal to that of a sun but for a period of more than 14 trillion years." Or if you need more juice, say 100000x the output of the sun, you could sustain that for about 140 millions of years. ;-)