Why do you believe this algo to be accurate and reliable??
Where did OP say that?
If not why bother? x = x * 2 gives you a guaranteed exponential growth, but who cares. I'd want something that works
Read OP again. He basically said "Hey, look at the interesting function I found. Probably not much to it, but appreciate comments on it". That's more or less all. Unless I misunderstood something drastically, there are zero claims to accuracy, but perhaps the hope to do something useful with what he came up with. He's presenting sth and collecting thoughts, basically.
That and this
Since this algorithm has no skill....