I love Science Asylum! It has the tone and vibe of a children's pop-sci "educational" resource, with incongruously rigorous content. The tensor video is very good, but I always laugh while watching because even with an admirable attempt to dumb it down it's so clear that there's a lot of iceberg beneath the surface. Reminds me of my favorite undergrad math profs, it's clear they're simultaneously doing their best to dumb the content down for us neophytes and not doing nearly enough.