> Tiny gram-scale interstellar probes pushed by laser light are likely to be the only technology capable of reaching another star this century. I'd encourage t

> Tiny gram-scale interstellar probes pushed by laser light are likely to be the only technology capable of reaching another star this century. I'd encourage to look at beam propulsion e.g. from here - http://www.gdnordley.com/_files/2way%20EML%20&%20PB%20prop.pdf http://www.gdnordley.com/_files/2way%20EML%20&%20PB%20prop.p... - this could serve as an alternative viewpoint.