An explanation of [a hard
topic] for [audience] that
doesn't condescend. The one
analogy that carries most
weight, and exactly where it
stops being true.

Explain Something Hard, Simply

One analogy, plus the point where it must be abandoned.

Prompt

Help me write an explanation of [a difficult topic] for [an audience] that doesn't condescend. Give me the one analogy that carries the most weight, and tell me exactly where that analogy stops being true.