I agree completely.

I stumbled on 3b1b a couple of years ago when I was trying to really understand the Fourier transform in a deep way.

His explanation of Fourier and especially the visualizations really helped me to finally 'get it.'

He has a real knack for conveying complex information and I am looking forward to watching more of the his other channel focused on the Julia language -- much of the 3b1b content is outside of my professional (and perhaps even cognitive arena).