&#62; have you never switched to a more productive language and cringed when you went back to the old language.<p>Yes, but the difference is not one order of magnitude. Not if there is some level of sanity in the language (e.g., I am not talking about brainf<i></i>k). For example, even though one can program faster in Python, it is not 10 times faster than in C, especially for large-scale software.