So are trains and cars (not to mention small planes, which are, mile for mile flown, much more dangerous than big planes). Everything has points of failure and is therefore unsafe in some way; the question can only be "how unsafe?"

That's incredibly dumb. Why would you require, say, a highly-skilled programmer to spend X hours a week moving boxes? As an employer, you would be paying a huge premium for a probably incompetent laborer (not to mention the risk that he/she would suffer an injury), and there might not be any physical labor to do on the site where he/she works. If you want that employee to be in shape, provide a gym or discounted gym membership. And in cases like your brother's, it would make sense for the airline to provide counseling about diet and exercise for employees who move from physical to sedentary tasks.

But the public still pays a cost, since the ambulance is still going to take you to the hospital and the ER is still going to treat you if you don't wear your seat belt. And you might need to be buried in a pauper's grave. If you can't pay for those expenses, they fall on the whole community.

The problems with much American pizza are (a) too much cheese and (b) the amount of oil used in the dough.

Actually the first official food pyramid was in the 1970s, and the USDA no longer uses that model, having replaced it this year with MyPlate. Yes, there are still major problems with it, and it represents an imperfect compromise between the more abstract idea of getting certain nutrients and the more concrete idea of eating certain foods, but if more Americans followed it they would certainly be healthier.

That's true only to a limited extent. If it takes more inputs to produce a kg of food locally than it does to produce it further away and transport it, the latter may still be the better choice. I live in a temperate region with cold winters. Fruit such as apples and berries grows well here, but it all ripens at the same time (summer and fall), so it makes sense to preserve it (drying, freezing, canning, jams, not to mention wine, etc.). In a warmer climate, the same fruits can be produced year-round. So it makes sense for those regions to ship fresh fruit to my area when it's not in season here, and my area to ship preserved fruit to them. That's actually the most economical and energy-efficient use of resource.

It's not a law. It's not the government restricting what you can do in a virtual environment, and even if it were a law, that would be a First, not Second, Amendment issue. This is no different from a store having a policy of not selling guns. Or more precisely, of a flea market setting a policy that its vendors cannot sell guns (or candy or wooden nickels or whatever else they want). What would the alternative be? Should Microsoft be forced to sell guns on Xbox Live? That would be a clear First Amendment violation.

Surely one factor is that early in its history much of the content on Wikipedia was copied from a public domain edition (1911?) of the Encyclopaedia Britannica, in which one would expect to find very few spelling errors. Over time more and more of the content is user-generated, so naturally it is more likely to contain typos.

Archos has made such devices for a while, though they're not as well known (or as highly polished) as the Galaxy Player.

Then you don't need a smart phone at all. It sounds like most of what you're doing could be accomplished by an iPod touch or the Android equivalent (e.g., an Archos 3- or 4-inch tablet). The only exception would be if you are streaming the video you watch on the bus rather than downloading them via wifi. Otherwise, you're better off saving the subscription costs for a smartphone.