"$0 cost to implement a proof-of concept" This falls apart for breakthroughs that are not zero cost to do a proof-of concept. Think that is what the parent is

"$0 cost to implement a proof-of concept" This falls apart for breakthroughs that are not zero cost to do a proof-of concept. Think that is what the parent is rereferring . That other technologies might have more potential, but would take money to build out.