Typing tutors tend to ignore symbol keys and skim the most used key, backspace/delete. These keys are included in Typing.io, which results in realistic practice and uninflated WPMs. Every typo interrupts the thought process in the same way as a slow compiler, UI lag, or slow compiler. A better REPL is one that allows for faster and more precise typing. This not only speeds up development but also fundamentally affects the exploration process. Yes, code completion tools usually help with easyToTypeAlphabeticVariables, leaving developers with a higher concentration of remaining symbols. Although some completion tools can help generate a lot of symbol-heavy boilerplate at first, manual typing is still required for subsequent edits. You can monitor trends in your typing such as increases in WPM or decreases in unproductive key strokes. Find and eliminate any plateaus that are preventing you from improving. Includes statistics on all typing lessons taken since your first login.