DaveInTucson

I've got to object to this. Yeah, June and July (and to a lesser extent August) are pretty intense, but I'd hardly characterize the rest of the summer heat as "insane".

> I still a) went running most days,

I suppose this could be an issue. Especially during the summer rainy season (usually July-early September) it's still pretty hot and the humidity means it doesn't much cool off at night, which makes strenuous outdoor activity harder even if you do it at the coolest part of the day.

I guess it was partially watered down in that the programming part of the class was optional.

> Point 3 peaked my interest

The homonym you want here is pique[1]

[1] http://dictionary.reference.com/browse/pique definition 3

Surely this is undecidable?

The same technique can be used to show there are still computationally undecidable questions if you have a Turing Machine with an Oracle.

This proof technique suggests not only are there undecidable questions, there are uncountably many of them. Even if you have an Oracle.

[1] c.f. http://en.wikipedia.org/wiki/Cantors_diagonal_argument

It does (or, at least, it can) if you give Array.prototype.map a suitable value. Here's one possible implementation:

  Array.prototype.map = function(o) {
    var copy = this.slice(0); // copy semantics
    for (var i in o) copy[i] = o[i];
    return copy;
  }