That's true in principle, but beyond a certain degree it would leave the realm of practicality, eg. You can pre-render something complex in 3D or do some comple

That's true in principle, but beyond a certain degree it would leave the realm of practicality, eg. You can pre-render something complex in 3D or do some complex calculations to populate a precomputed table on any computer no matter how slow, and it might be clunky and inconvenient yet still possible if it's merely 2x or 3x slow. But if it's something like 10000x slow doing it would pretty much be out of the question, as real-world projects (even hobbyist ones) are bound by limitations of time and budget.