Comment by xandrius

> Once your engine is finished

Most likely never?

Obviously understanding what `GameObject.Instantiate(myPrefab, Vector3.zero)` takes several orders of magnitude less than implementing all that is required to properly perform that, even for such a basic operation.

Imagine when it comes to 2D/3D physics, shaders, platform support, etc.

If your goal is to build an engine, build an engine. If your goal is to actually deliver a game, build a game.