Can it explain something from my own PDF or lecture?

Yes. Add the file to a project and name the idea or quote the passage. The explanations use that material and its terms.

Is the simplest version still true?

It is true as far as it goes. It leaves detail out, and the last section tells you what was left out or simplified.

Explain like I'm 5, and then like I'm 15 and 25

Name an idea. Winda explains it three times: first for a five-year-old, then for a high school student, then for a university student. Start at the level you can follow and read up.

Free to start · No credit card needed

ExampleHow vaccines work, at three levels.

What you get

For a five-year-old: Three or four short sentences in words a child knows, built on one thing from daily life.
For a high school student: The main terms, how the thing works and one concrete example.
For a university student: The exact terms, the mechanism or the formal statement, and the conditions and limits.
What the simple versions left out: Two or three lines on what each simpler level dropped or bent to stay simple, so you know which statements are only a first picture.

What “explain like I'm 5” means

“Explain like I'm 5”, or ELI5, comes from an online forum where people ask for plain answers to hard questions. It does not mean an answer for a real child. It means an answer with no jargon and no assumed knowledge.

A very simple explanation is a good first step and a bad last one. To make an idea fit in four sentences you must leave things out, and sometimes you must say something that is only roughly true. If you stop there, you carry the rough version into an exam or a discussion.

For that reason this template gives three levels and then says what the simple ones left out. Read the first level to get the picture. Read the second to get the terms. Read the third when you can follow the second without effort. If one level is too large a step, ask Winda about the sentence where you stopped.

How it works

Say what it is about
Name a topic, or add a PDF, a lecture video, an article or your own notes. With files, the result is written from them.
Winda makes it
The template sets the form, so you do not write a prompt. You choose the model that does the work: Claude, GPT, Gemini and others.
Keep it and change it
The result is saved in your project beside your files and chats. Ask for a change in the chat, or make flashcards and a quiz from the same material.

Questions

The Feynman template gives one plain explanation for an adult who is new to the subject, and questions to explain it back. This one gives three explanations of growing difficulty, so you can climb from the simplest to the exact one.