Kurzgesast – In a Nutshell is a site with short videos on all sorts of futuristic topics. Here is one on the Dyson Sphere. It talks about a seemingly-plausible approach to a Dyson swarm where small, cheap solar satellites are used to beam solar energy to factories on Mercury, which is used along with materials on Mercury itself to make more satellites and more factories to make satellites in an exponential manner. Sounds good except for the possibility of a runaway exponential system redirecting increasing amounts of solar generation in new directions, and the ethics of possibly disassembling an entire planet into construction materials.