@thomasfuchs @harry_karadimas
Yeah, that's what I mean. Without expanding our understanding of the problem, it's not physically possible. It's not a matter of technology, not an addition problem, it's a division problem. You can't evem approach 100% efficiency or 100% c.

So you have to do Rocket Equation for what CAN be done, and figure out if it's something we want to do.

(Probe swarm of drones the mass of a LEGO with antennae in an array for communicating home from Alpha Centauri? Maybe!)