> While some recommendations include using a paper towel to turn off the faucet after hands have been rinsed, this practice leads to increased use of water and paper towels, and there are no studies to show that it improves health.

SPI is much easier to write correctly, and pretty much only has the extra wire (usually not a problem) and the phase polarity issues as a negative point.

> This is an observational study, and as such, can’t establish cause. And the researchers caution that the number of included studies was small and their methods varied considerably, which may have influenced the results.

People who are sick or have other health issues will do very little running, so correlation and causation and all that.

Healthcare insurance is more expensive in the US, but this is compensated by much lower taxes.

You're definitely right about holidays and vacation days, you'll have more of these in the UK. At the same time, even when you value a vacation day at 300$ (much more than either average UK or US dev earns in a day) and suppose our average UK dev has 20 more vacation days a year (he probably doesn't), that's still only 6k out of a 15k difference.

I agree that being near your family and friends can be worth a lot more than 15k$.

It's a concept created using VFX[1].

http://www.autoblog.com/2012/09/10/german-crosswalk-lets-opp...