I like 3b1b's animations, but lets not get ahead of ourselves here. Mathematicians have been using blackboards and symbols for thousands of years, and its neve

I like 3b1b's animations, but lets not get ahead of ourselves here. Mathematicians have been using blackboards and symbols for thousands of years, and its never been a hindrance. While its not as good as video, its more than adequate to explain things and if you still have issues, you can use the many mathematical modeling tools that have existed for years. Also, many of his topics require in-depth knowledge in the first place and gloss over significant portions of detail because the problems are often specialized. These details are obscured through the many drawings and it gives the viewer a false sense of understanding without actually being able to do the math. So you're left with a largely conceptual understanding without any syntheses understanding, because, at the end of the day, you have to produce a line by line derivation in order to be considered having understanding.