Comment Thermodynamics ? (Score 1) 35
I wonder...
Would be an interesting calculation to see how much of one of these "robots" use energy when prospecting, shoveling, digging, transporting and then producing the energy they used in the process.... in a say, coal powerplant.
How far are we at this point from the redline that these car crashes can power their own consumption by doing something ?
That's the point when we come obsolete.