FuckCSS

The main argument for surrounding a star with a Dyson spheres is that it allows capturing the maximum amount of solar power.

But is solar power really that useful? The power that can be collected per unit area is really quite low so huge arrays are required in order to gather large amounts of it. Today we still use fossil fuels for most of our needs and the main reason is that it is cheap and compact (ignoring the ecological implications).

Wouldn't it be possible for compact fusion to dramatically outperform photovoltaics? If that happens then it might be far more effective to use a reactor fusing hydrogen from ice on Pluto than to build solar collectors in the inner solar system. By more