2 ms·

I don't think that is correct. I think there's a rather disappointing limit on the acceleration a laser sail can reach with known materials.

• sigmoid10 1y ago
  You explicitly asked for unknown materials. Because there is no known material because such a laser does not exist. We have solar sail prototypes that were using the sun's light, but even they are far off in terms of size/weight ratio and reflectivity.
  • lazide 1y ago
    If we’re just making stuff up, why not just have a warp drive or something?
  • kragen 1y ago
    No, I didn't ask for unknown materials; lasers can be built with known materials. Also solar sails aren't lightsails, and the topic here is lightsails.