Dr. Drang:

By the way, if you think it’s crazy for me to still be using a five-year-old computer, you’ll be in good company, I’m sure. But I get a lot of work done on this old Air, and apart from its small SSD (128 GB), its limitations barely affect me… And the power of a computer is always more dependent on the carbon-based unit outside the case than on the silicon inside.

So true.

(Emphasis mine.)