This. The problem with porn is that it presents an extremely skewed view of sex, which can seriously interfere with a normal, healthy sex life. Most people don't look like porn stars, and many -- especially women -- have no interest in doing many of the acts commonly portrayed. Anal sex, for example, is a porn staple but something relatively few women have any interest in. Porn also presents sex as a casual and purely physical thing for the most part, which leads people -- especially but not exclusively young people -- to see casual hookups as a good thing, while in reality most people who pursue a lifestyle of casual sex find it to be unfulfilling. And then there are the dangers of unprotected sex, which porn also portrays and thereby encourages.

I've read stories of men who found that they had to close their eyes and envision their favorite porn star in order to climax with their girlfriend or wife. That is really, really sad, because it means that they're missing out on the deepest part of the sexual experience, the bonding with a life partner.

In a nutshell, porn can and often does ruin real sex, replacing it with a shallow imitation.

Obviously, some waste heat will always be produced. Internal combustion engines, however, waste 75% of the input energy as heat.

Some produce much more than others, though.

Really? Wow. I've had that attribution wrong for years. Thanks.

Or disable them. They're still on the /system partition then, but can't run and their icons don't show up.

Starting with 5.0 there's another potential improvement: http://www.androidauthority.co...

There are lots of ways to generate power that don't involve burning anything.

Of course. And there are also transmission losses. However, large plants have significantly higher efficiencies than small engines. Net, EVs powered by oil-fired power plants use less oil per mile traveled than gasoline engines, by a large margin, even when you include electric cabin heat.

Large scale solar power plants don't usually use solar panels. They are of the Concentrated Solar Power variety. The environmental impact of producing the large number of mirrors and motorized mounts required for these plants is pretty small.

If this is a problem, it's fairly easy to mitigate, assuming you have a dedicated parking spot (e.g. a garage): Install wireless charging. You take a hit on charging efficiency of about 25%, but considering that electricity is 1/4 the cost of gasoline that's not a killer. With that, every time you park at home, you're charging.

I've seriously considered installing it for my Nissan LEAF. It's kind of pricey, though, about $4K for a system. That would be okay if I were certain I could use it for 20 years or so, but the industry is in its infancy and standards aren't yet well-established.

Rather, I'd say that it's a somewhat reduced inefficiency during the winter. An efficient system wouldn't produce the waste heat to begin with.

You have an odd definition of inefficiency. The fact that ICEVs generate a lot of waste heat is the real inefficiency, even if it does provide a "free" solution to the problem of cabin heat. An efficient vehicle doesn't waste energy and then sometimes apply a small percentage of the waste to do do something useful.