Take my advice and don’t ¹.
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¹ They take over your life — it’s a terrible affliction ².
² You start out with one and, before you know it, you’re adding footnotes to footnotes to footnotes — the only thing worse is recursion ³.
³ To which there is no end and it can drive you insane ⁴.
⁴ Oh, it looks pretty enough as fractals but just try getting recursive yourself — next thing you know, you’re inside the mind of God with no Past, Present or Future⁵.
⁵ It’s utter chaos, with neither cause nor effect occurring in any particular order and there’s no way out — it’ll drive you mad, if you’re not careful ⁶.