Moderate Progressive Politics

We would, though, like to suggest that in some key areas, the people who are defining themselves as the progressive wing of the Democratic Party — identified with Sens. Bernie Sanders (I-Vt.) and Elizabeth Warren (D-Mass.) — are embracing principles that are not genuinely progressive. Specifically: They want to enlarge government entitlements and hand out the benefits as broadly as possible — free college, free health care, expanded Social Security — regardless of need or available r...

 Dyson Spheres

The material factors which ultimately limit the expansion of a technically advanced species are the supply of matter and the supply of energy. At present the material resources being exploited by the human species are roughly limited to the biosphere of the earth, a mass of the order of 5 X 10^19 grams. Our present energy supply may be generously estimated at 10^20 ergs per second. The quantities of matter and energy which might conceivably become accessible to us within the solar system are ...