Simplex noise vs Perlin noise

Question

I would like to know why Perlin noise is still so popular today after Simplex came out. Simplex noise was made by Ken Perlin himself and it was suppose to take over his old algo

Answer 1

simplex noise looks worse imho, and lots of people think it looks "increasingly bad" in higher dimensions. I'd still recommend it over perlin for most applications, as most won't be using just raw simplex but octaves of it which looks roughly the same as octaves of perlin and is significantly faster for octaves.