That's an excellent question.
I'd be happy to send you a report on how the costs associated with hydrocarbons were calculated.
People often think solely in the present and forget Moore's Law, which still applies today. The efficiency of computers and energy use will continue to improve, and we can see that already.
Quantum computing will definitely benefit blockchain technology and improve efficiency. People say quantum computing will destroy security, but algorithms are already available that can protect against that in the blockchain field and in all industries. If quantum computing could hack blockchains, we'd have more problems because the data of the banks and all other industries would be affected.
In short, quantum computing is the next generation in the efficient use of computer energy and processing speed. It will have a positive impact on blockchains. Consequently, there's definitely a connection between the two.