A potential witness doesn't need much SP on their own. A potential witness just needs that users with enough SP vote for them in order to rank higher.

This Justin Sun experience has shown us an "unnatural" situation for a 4 years old (so called) social blockchain. No established community in the real world would let a "newborn" or a "newcomer" to rule it, because experience is an important aspect of governance.

So that's what a good implementation of a REDPOS spirit should reflect at code level.