Show HN: A tool for your learning, like Anki and WorkFlowy in one

Probably quite cheap to pay people to onboard sets of well established notes, eg cambridge undergrad maths notes or similar. This may help with dedicated users in niche communities.

Collaboration is hard, but a forking mechanism might be easy+valuable.

Tree structure could guide spatial repetition probabilities, see eg that half-life regression paper from Duolingo.

Say you want to learn about eigenvectors and eigenvalues. Instead of writing the definition, you might have a card which asks the following:

"Create a matrix whose eigenvectors or eigenvalues are always equal."

This will force you to do two things. First, you will learn from creating the card since you're forced to synthesize the information rather than copy. Second, your recall will force you to work through this newly created problem.

Another general strategy is to just pick a problem from a book that uses the concept. If you ever get the problem wrong, you oblige yourself to solving an additional related problem from the same book (i.e. find the basis of one of the following matrices).

I guarantee you will learn 10x more effectively.

Also beware of falling victim to spending more time on building tools than learning... I've found that pencil and paper go a lot farther than people give credit.

But a couple of pieces of advice.

1. I think there is too much stuff on the screen and it can feel overwhelming.

2. It doesn't seem obvious how to use it. I think if the first screen you went to was a hierarchical example deck it would useful. An illustrative example is worth a 1000 tool tips.

Spaced repetition might also be supported in the future, but it's not as high priority as links. We also have a graph view for link relationship. Oh, and one thing different from Roam is that Obsidian reads your local folder, so you don't need to put stuff in the cloud, and you own your data 100% (if that's your thing).

For now, I will focus on functions as a basic SR program for the time being. So the next big updates are: The feature to manage contents through a tree structure, the feature to divide media such as images into multiple parts to make it questions, and of course mobile app.

And, actually, I have more ambitious goals than just the SR program. My goal for this is to build an integrated learning environment. In my opinion, the ability to hold personal knowledge can be small but right entry point for bigger things.

Specifically, the first is a ML-powered learning resource viewer. If you can simply view multiple formats (pdf, video, etc) in one place and make it work with LO on the spot, that would be good. But it can go further than that. Now, text readers are all bad, because I think they aren't taking full advantage of the digital interactivity. They are just putting paper books on the screen. I want to build a viewer that allows users to interact with texts using ML (like IDE for reading).

The second is a finder of learning resources. Now, the learning resources are quite scattered, and I think it would be nice to be able to manage various learning resources in one place. I think that way, I can build an app like Netflix for learning resources.

And like any other edtech software, I may be able to make it possible for users to collaborate with others in this app. But I don't have many ideas for this part yet.