Comments by "Matuse" (@Matuse) on "The Future Colonization of Space: Terraforming and Dyson Spheres" video.

  1. Pretty sure you'd need to strip the entire contents of about 200 solar systems in order to get the material to make a Dyson sphere. And then everyone inside would be subjected to rather colossal levels of radiation. Also, any coronal mass ejection would kill billions of people... As far as Mars, the real problem with walking around on the surface is that we'd need several trillion square kilometers of solar mirror to liquify it and then drop several quadrillion tons of rocks onto the melted surface in order to give it a liquid core to generate a magnetic field. The extra mass will also help Mars keep ahold of the relevant gasses.
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