In a further signal that economic indices have a taste for irony, an index released by the National Association of Realtors shows that housing affordability was at an all-time high in December. A family earning the median income has 158.8 percent of the income needed to qualify for the mortgage on a median-priced house. And prices are likely to fall even further in the coming months. It's going to be a good time to buy, even if it's not going to be a good time to, you know, keep your job. And hey, it's (probably) a safer investment than the stock market. Wood is almost certainly a more desirable post-apocalyptic good than paper. Burns longer, for one thing.