Well the proper analogy would be that you write your programs in assembly. I think the more impressive thing here isn't the ray tracer, but the C (or was it C++?) to brainf** transpiler. That would be equivalent to you writing both C code and the C compiler. Pretty impressive, but depending on the complexity of the program not as impressive as writing whatever it is in assembly directly. A raytracer would be PAIN to write directly in brainf** - I think I'd want to use fixed precision everywhere rather than emulated floating point. (on second glance, it does look like the author of the article is also using fixed precision arithmetic, but confusing the label for the layout of the number with the type of number representation itself?)

Looks like I misunderstood what it meant to be a floating point, and this does match the description of a fixed-point representation.

> Pretty impressive, but depending on the complexity of the program not as impressive as writing whatever it is in assembly directly

I'd make the case assembly is easier here, given the DSL isn't much different in terms of it's experessiveness, and jumping around is easier in assembly too. Registers change the whole thing.