Let’s look at some examples.
If we compress a note too much, in other words, we make a summary that is too brief, we lose the context and it loses all meaning. In the note above, for example, the information it contains is highly discoverable — I can get the gist of it with just a glance.
But if I come across this note a year from now, I’ll have no idea what it means or why it’s important. It’s too compressed.
But we can go too far in the opposite direction too. If we make something totally understandable, in other words, if we include every little detail and bit of context, it loses its discoverability.