I was actually thinking 🤔…hmm this would be the best way to tell some other civilization that we live in this planetary system…get a mirror big enough to point a beam out of its normal trajectory in some sort of non random fashion. Basically smoke signals using a mirror.

Scientists: Climate change is happening.

Some billionaires: Let’s make a giant parasol in space.

This guy: How about more sun?

This has the potential for some amazing pranks. Imagine being on a camping trip somewhere, the dawn light illuminates your tent, so you get up and start going about your day, making breakfast etc, and all of a sudden the sun goes out.

How will launching mirrors of the size of your entire farm (if not hundreds times larger) for extra 30 min of sunset ever be more cost-effective than simply adding a small percentage of extra PV panels

This is this year’s single biggest understatement

I watched a video yesterday about the laser range finder on a tank. The interesting thing is that at long enough ranges, the laser expands into a cone that may be bigger than the target and give inaccurate readings.

Anyway, I look forward to this totally real and feasible technology.