[Joe Brower]

In addition to your remarks, I would add that structures such as a RingWorld or Dyson Sphere would require materials capable of withstanding stresses far beyond anything even theoretically possible.

[camle]

interesting comments about marerials. Funny how nobody ever thinks abotu where is all that material going to come from. can we even imagine how many planets would be totally consumed encasing an entire solar system???? Millions? trillions?

and how long would it take? centuries? millenia? Is there any affirmation that any civilization, consuming so much resources in order to construct such a thing lasting long enough to complete the task?

and for what? It would be far more cost effective for a civilization to colonize other worlds in order to spread, than pulverizing them in order to build this thing.