That guy goes as hard as a math class.

For example, here's a page on his site explaining a concept in one of his books: https://www.gregegan.net/DIASPORA/02/02.html

His explanation of time dilation and different types of space-time geometry is far more accessible than any other I’ve seen.

https://www.gregegan.net/ORTHOGONAL/00/PM.html

You can feel the shape of the fluting by the subtle dimples in the cardboard the characters are cut from!

One of my favorite authors in all honesty.