When the advantage provided by doing an in-house ASIC goes away, the limiting factor becomes cheap electricity, and the amount of people who are able to compete grows.
Right now, a couple groups of people are trying to make the fastest ASIC so that they can convert electricity into money, using their proprietary efficient converter.
But if everyone can get the same efficient converter, suddenly it's viable for anyone that can produce cheap electricity with a stable internet connection. And there are far more people/countries who are able to compete on the cost of electricity than there are people/companies who are able to compete on making the best SHA-256 ASIC. This tends towards decentralization.
Right now, a couple groups of people are trying to make the fastest ASIC so that they can convert electricity into money, using their proprietary efficient converter.
But if everyone can get the same efficient converter, suddenly it's viable for anyone that can produce cheap electricity with a stable internet connection. And there are far more people/countries who are able to compete on the cost of electricity than there are people/companies who are able to compete on making the best SHA-256 ASIC. This tends towards decentralization.