Matthew Taylor writing in 2015:
Social mobility (starting gate equality) is often cited an acceptable alternative to the more left wing idea of egalitarianism (end point equality), yet it is clear that the best way to create a meritocracy is to pursue greater egalitarianism. Mobility is greater in societies that are less unequal partly because the rungs in the ladder of stratification are closer together and partly because middle class people are less frightened of the consequences of downward mobility (generally the barrier to mobility is less about the poor's ability to go up and more about the resistance of the well off to going down).
Watch at The Guardian
Bitcoin's rising price is driving even higher electricity consumption, as people seek to find their nugget of digital gold. Alex de Vries estimates Bitcoin accounts for 0.12% of global electricity consumption and would be ranked 68 in global energy consumption if it were a country. The wastefulness is grotesque. Regardless of the merits of crypto currencies, Bitcoin doesn't scale—no one wants to wait minutes or hours at the register for a transaction to clear—and worse its energy requirements cause tonnes of carbon dioxide to be emitted. Research and innovation in crypto currencies should absolutely continue, but it's time Bitcoin was shut down.