I have a few questions about human cloning?

If you cloned someone before they died you'd have another 1 after the 1st one died. If you cloned Albert Einstein we might have more inventions than we do today. Yes, we probably would overpopulate and we probably would go poor. If you cloned someone I would think that they would start out as a baby because if you cloned someone they couldn't just start out as a full human thats gone through puberty and everything. I really wouldn't know if the baby would be wiser it'd probably start out as smart as the original but depending on how the baby grows up it might become smarter. Oh and if we did clone we would have more army soilders.