We detached this subthread from https://news.ycombinator.com/item?id=14348231 https://news.ycombinator.com/item?id=14348231 and marked it off-topic. I assume it

We detached this subthread from https://news.ycombinator.com/item?id=14348231 https://news.ycombinator.com/item?id=14348231 and marked it off-topic. I assume it's in reference to McCarthy being surprised at Steve Russell's implementation of eval, but I'd be shocked if he actually said it was impossible.