The ’80/20′ ChatGPT immediate is the quickest solution to be taught something
We’ve all been there—that second once you understand you’re in method over your head. For me, it occurred throughout my first briefing with a sensible gentle vendor, when it grew to become painfully apparent that I couldn’t inform a normal A19 bulb from a BR30 can gentle.
Clearly I wanted assist, quick. A crash course proper then and there—one thing that may give me a stable baseline information of lighting earlier than I publicly embarrassed myself once more. This explicit information disaster passed off method again in 2019, earlier than ChatGPT, Claude, and Gemini existed. That left me on the mercy of Google, and even (gasp!) my native public library department.
However now that we do have ChatGPT and all the opposite AI chatbots at our disposal, there’s a simple immediate that may provide help to stage up from “dunce” in nearly any matter in simply 10 minutes.
I’m speaking concerning the “80/20” immediate, which is derived from the 80/20 rule (aka the Pareto precept) that claims 80 % of outcomes come from solely 20 % of the causes. The 80/20 rule has been utilized in fields starting from enterprise (e.g., “80 % of your earnings come from 20 % of your clients”) to cooking. And as AI immediate engineers shortly found, it can be utilized to studying new abilities.
There are lots of variations of the 80/20 AI immediate, however right here’s a typical one I’ve seen floating round:
I wish to be taught [TOPIC]. I don’t must turn out to be an professional—I simply need a stable working understanding. Establish an important 20% of ideas, phrases, or concepts that may give me about 80% of what I must know. Educate me these first, in plain language.
And right here’s a good shorter model:
What’s the 20% of [TOPIC] I ought to be taught first to grasp 80% of it?
This immediate will get the AI to prioritize probably the most important 20 % of a given topic that may get you 80 % acquainted, whereas additionally making it clear that you just’re not in search of a grasp’s diploma. You simply want some primary grounding on the subject and also you want it shortly.
I attempted this immediate utilizing ChatGPT GPT-5.5 On the spot for my earlier gentle bulb conundrum and acquired a primer that I want I’d had again then. Right here’s a consultant snippet of ChatGPT’s reply:
A19 = the “regular lamp bulb”
That is the usual bulb form utilized in:
- desk lamps
- ground lamps
- many ceiling fixtures
- primary sconces
The “19” refers to dimension.
If somebody says:
“This fixture takes A19 bulbs”
they imply: normal family gentle bulbs.
That’s it.
Phew! Not expert-level information, to make certain, however sufficient to get me via my subsequent assembly with out making a idiot of myself.
Subsequent I attempted one thing a tad trickier: quantum mechanics. (I used to be an English main in school, so I do know much less about molecules than I did about gentle bulbs again within the day.) Right here’s a small portion of what I acquired:
A quantum object is described by a wavefunction
That is the central concept.
A particle (like an electron) isn’t just a tiny marble with a particular place and pace.
As a substitute, it’s described by one thing known as a wavefunction, which encodes:
- the place it is likely to be
- what it’d do
- the chances of various outcomes
You possibly can consider the wavefunction as a “cloud of potentialities.”
Properly, OK, I can type of comply with that! I’m nonetheless no professional after studying ChatGPT’s 80/20 primer, however not less than I now have a tough concept of Heisenberg’s uncertainty precept.
A few caveats concerning the 80/20 immediate:
- It’s solely nearly as good because the AI’s base information. An enormous mannequin like Claude Opus 4.7 or GPT-5.5 will seemingly offer you a stable 80/20 briefing on nearly any matter, however a small “on the spot” mannequin may offer you a sketchier reply.
- You possibly can attempt grounding the AI with a PDF concerning the matter and asking for the 80/20 remedy based mostly on the uploaded file. You might additionally ask the AI to go looking the online earlier than replying.
- It’s not nice for studying hands-on abilities that require actual follow, like portray. Stick with ideas as an alternative.
One ultimate tip: Attempt including a time restriction to the 80/20 immediate (e.g., “I’ve 10 minutes to bone up about…”). It might assist to both broaden the 80/20 reply you get (months) or compress it right into a smaller, extra digestible package deal (hours).

