Because the value isn't in just having raw reference material like complex code you just paste into your program. The value is in communicating ideas and understanding.

You don't need to skim through the 4 hour video long to see it's full of whys and hows and explanations and demonstrations that massively dwarf the blog post. It's basically a mini course.

Programming is an interactive process, so transcribing the video to text also removes a lot information. The video isn't just an audio form of what could've been a long text tutorial. You're watching someone do something.

> The value is in communicating ideas and understanding.

And those ideas absolutely can't be communicated in concise writing, I have to waste my life on listening to talking heads?

This is an option for those who want to learn from a more interactive medium instead of from a textbook.

Different people learn in different ways. I wouldn’t call any of it a waste.

Yes. Skim the video. You're watching someone explain things interactively in a way that cannot be done with text.

Whether you have the preference for it or not is not up for debate here.

> Skim the video.

So not all 4 hours are worth watching? :)

You can listen someone thought process, that is extremely valuable