For almost all of human history, the tools you grew up with were the tools you grew old with. A woman born in 1850 cooked, traveled, and wrote letters at seventy much the way she had at seventeen. Change came, but slowly enough that a person could live a whole life inside one version of the world.
You have lived through something different. Television arrived in your childhood or your parents’. Then the personal computer, which made everyone feel foolish for about a week. Then the internet, which was called a fad. Then a telephone in your pocket more powerful than the computers that put men on the moon. You judged each one, took what was useful, and got on with your life. That is the only skill this course requires, and you already have it.
So what is different this time?
Three things, honestly stated.
The speed. Television took decades to reach most American homes. The telephone took seventy-five years to reach a hundred million people. ChatGPT — the best-known of the new tools — reached a hundred million people in about two months. Nothing has ever spread this fast.
What it touches. Every machine before this one took over work done by hands and backs — the washing machine, the tractor, the assembly line. This is the first that reaches for work done with the mind: writing, summarizing, planning, explaining. Work we assumed was ours alone.
Who it reaches. Not one profession or one factory floor. Nearly everyone’s daily life — which is exactly why it deserves an unhurried hour of your attention, and no more fear than the dishwasher got.
The microwave mindset
Here is the single most useful idea in this whole course. You do not know how your microwave works. Not really — something about waves exciting water molecules. You have never needed to know. You learned what it is good for, what it is bad for, and what never to put in it, and it has served you faithfully for forty years.
That is precisely the right relationship to have with artificial intelligence. You do not need to understand neural networks any more than you need to understand magnetrons. You need to know three things: what it is good for, what it is bad for, and what never to put in it. That is what the next six lessons teach.
One honest caution to carry with you from the start: these tools are sometimes confidently, completely wrong — and they are wrong in the same calm voice they use when they are right. So the standing rule of this course is that you stay the editor. It drafts; you decide. You already do harder things than that every day.
Try this now
Open a web browser — on your phone, tablet, or computer — and go to chatgpt.com. As of this writing you do not need an account; you can simply start typing. Ask it one real question from your actual life. Not a test question — a real one. For example:
“My hydrangeas did not bloom this year in coastal Connecticut. Give me three likely reasons and what to do about each, in plain language.”
Read the answer. Notice two things: it answered you in ordinary English, and you are still the judge of whether the answer is any good. That is the whole relationship, and you just had it.