That isn't the thread. I don't know for sure whether it's the utility that was being used. In the thread I'm thinking of, one poster noted (using some utility) the memory consumed by a program that interpolates numbers into a string to print vs. the memory consumed by a program that passes the numbers as separate arguments to print. The respondant dumped the value of an interpolated number and a non-interpolated one, showing that the memory overhead was due to having stored a stringified value.

Does that sound familiar at all? I know it wasn't very many weeks ago.