1. Why would anyone ever want to speed up Venus's rotation? That's not a priority.
2. Reflecting a portion of light from Venus isn't too hard (aerosols, for example), but if you cool down the atmosphere, a HUGE portion of it will condensate and freeze, basically solving almost all atmospheric problems, leaving you with a nice planet that is simple to work with afterwards.
[color=#ff0000;]1.[/color] That's actually something people would want since it'd be easier to adapt to being there otherwise you're stuck with excruciatingly long days. [color=#ff0000;]2.[/color] Also since when did condensation lead automatically to freezing? [color=#ff0000;]3. [/color]You still have enormous amounts of heat trapped at the surface. [color=#ff0000;]4. [/color]Leaving the rotation as is would make cooling the atmosphere way more tedious.[color=#ff0000;] 5.[/color] Venus receives twice as much solar radiation than Earth and it lacks a magnetic field.
1. Most people sleep indoors, so that's not a priority.
2. Never, but I suggested cooling it down enough for annoying stuff like acids to either simply condensate or even freeze.
3. I suggested leaving it to cool down. It might take years, but whatever. Waiting is simple.
4. How exactly? The same amount of heat is entering and leaving the system, it doesn't depend on the rotation.
5. That's the only real problem, but you'd face the same problem on Mars (it would only be quantitatively different and the solution would most likely be the same).
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