Oh yeah! Add to Tour de Force. On reading the documentation of GNU Screen. Auto-margin terminals. This answers all your questions that you had about how terminals would behave when you type to the edge of the screen. Does it automatically wrap to the next line, does the additional text get truncated, or does the additional text overwrite the last character in place? This is the more technical terminology for this behavior. “Magic” margins allow you to type the last column on your screen before wrapping to the next line.
This terminology comes from Terminfo.
20160103/http://pubs.opengroup.org/onlinepubs/7908799/xcurses/terminfo.html