I thought I understood it.
I’d read it, nodded, moved on.
Then someone asked me to explain it,
and I fell apart.
The hand-waving. The “it just kind of works.”
The gaps I’d been walking past for months.
Teaching is a test you can’t bluff.
The act of explaining it plainly
showed me exactly where my understanding
turned into fog.
Now I use that on purpose.
When I want to really learn something,
I try to explain it to someone else.
Or write it down. Or answer the dumb question honestly.
What survives the explaining
is what I actually know.
The rest is just familiarity
pretending to be understanding.
– Serguey Asael Shinder
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