We will have intelligence amplification through narrow AIs before we can have AGI. At a certain point, we will require neuromorphic hardware and spiking neural networks. But that will not give us AGI. We need quantum supremacy, millions of coherent qubits in a quantum computer. That alone would have a price tag in the tens of millions of dollars, inflation adjusted, or more. So if the trend continues of the rich getting richer and the poor getting poorer, the number of people and companies who can afford to build AGI would be quite low. Understandably, not all of them will have interest in AGI. So multiple maybe and certainly not billions, dependent on cracking quantum supremacy and other hurdles.