Why watching isn't studying
Video is a passive medium. It plays at a comfortable pace, everything feels clear in the moment, and that fluency tricks you into thinking you've learned it. But you never retrieved anything — you just recognized it as it went by.
To actually retain a video you need two things science is clear on: active recall (test yourself on the content) and spaced repetition (revisit it over days and weeks). Flashcards give you both.
The manual way
If you want to do it by hand, the process is straightforward — just slow:
- Watch with the transcript open (YouTube's "Show transcript" panel).
- Pause at each key idea and write a question whose answer is that idea.
- Keep each card to one fact, phrased so the answer is specific.
- Load the cards into a spaced-repetition app and review daily.
The fast way (AI)
Doing that by hand for a 40-minute lecture can take longer than the lecture itself. This is exactly the workflow FlazhAI automates: paste the video URL and it reads the transcript, pulls out the key points, and writes a spaced-repetition-ready deck in about 30 seconds — which you preview and edit before saving.
From there the app schedules your reviews with SM-2 and tells you what's due each day. You can also go deeper on any section with chapter deep-dives, or ask questions about the material in chat.
Make the cards actually good
However you create them, the same quality rules apply:
- One idea per card — split anything with an "and" in the answer.
- Prefer "why/how" prompts over pure recall where the video explains reasoning.
- Cut filler — sponsor reads and intros don't belong on cards.
- Review the generated deck before trusting it; fix anything the source got wrong.