Column · practice vs exposure
Exposure changes what you know about. Practice changes what you can do. They are not on the same axis, and time spent on one does not transfer to the other.
Because it is comfortable and it produces the sensation of progress: new vocabulary, new names, new structures. None of that survives contact with a real problem on its own.
Attempt, feedback, correction, attempt again — with the attempt being the expensive part. Anything that removes the attempt removes the learning, however good the instruction.
For every hour of input, an hour of output that someone else can evaluate. If the second hour never happens, the first was consumption, not training.
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