3 ms·

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 usin

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.