User: VanHook

Why use lasers when you could use sunlight?

On: Engineers Working On Swarm Of Laser Wielding Satellites To Deflect Asteroids

Why go to the bother of lofting power supplies and creating lasers when there is a nonstop source of radiant energy at the center of our solar system?

Just create a bunch of mirrors and point them all at the same spot on the side of the asteroid, create the big gas plume, and send it on its way.

Re:You can't opt out of capitalist imperialism

On: The Fall of Data Haven Sealand

I thought the plan was to use up the oil in the rest of the world first, and only then use the oil in North America.

At some point solar power satellites become economically feasible as well.

better portable device battery usage

On: Ask Slashdot: How Would Room-Temp Superconductors Affect Us?

The DC to DC conversions inside portable electronic devices would get a lot better. All the circuits inside the devices would be more efficient. It might enable some kind of better battery technology also. Room temp superconductor is not going to be able to be produced on a large scale at low price anytime soon after discovery, so transmission lines are the last thing on the list to get made.