[petercooper]

By that argument, it's not "free" to just walk down the street, because your tax dollars are paying to maintain that street - and reading a book at the library isn't "free" because you're paying for it through taxes. Heck, almost nothing's "free" by those criteria.

[DanielBMarkham]

Lots of stuff is free.

Come couch surf at my place. I pay for it, but you enjoy it: it's free to you. Here's an ice cream cone. Once again, I paid, but you enjoy it.

To you, it's free.

Now -- use the powers of government to force people to pay taxes to buy you an ice cream cone? It's not free to you any more.

The danger is that you start feeling like I'm going to give you ice cream cones anytime. I can correct you of that assumption pretty quickly. But when the giver is some anonymous blob, starts looking like free money.

[byrneseyeview]

The marginal cost of walking down the street is nearly zero. Likewise, the marginal cost of reading a book is minimal. But since we're discussing an industry with very high marginal costs (doctors' time is expensive!), not to mention higher depreciation (libraries have plenty of books that are more than fifty years old; hospital equipment ages a little faster).

You're right. Almost nothing is 'free' by those criteria. Economists like to say that "There ain't no such thing as free lunch."

[pietro]

Absolutely. There's no such thing as a free lunch.