I have a hard time believing that you're actually trying to understand, which kind of trust the people who created Bitcoin meant and why they thought it's important.
Just claiming banks are in that sense trustworthy either neglects that banks exist in states and can be influenced or is plain naive.
We live in a world where states and central banks are constantly trying to achieve goals by changing money creation.
No matter if you see that as problematic or not, you'll hardly deny that currencies are subject to extreme pressures from economic actors (governments, banks, societies, businesses, ..).
Therefore claiming that banks can simply be "trusted" to withstand these pressures (by strictly enacting some agreed upon policy) is a bit like closing your eyes on the real world situation of currencies.
Pointing out the limits of the currently implemented mechanism (in Bitcoin) does not equate to Bitcoin being inferior to the trust system of conventional currencies.
> currencies are subject to extreme pressures from economic actors (governments, banks, societies, businesses, ..). Therefore claiming that banks can simply be "trusted" to withstand these pressures (by strictly enacting some agreed upon policy) is a bit like closing your eyes on the real world situation of currencies.
I was merely pointing out that your statement about currencies also applies to (at least some) cryptocurrencies. Large mining groups refraining from securing 51%, or colluding with each other to similar effect, is the only thing stopping them from having the power to maliciously inject fraudulent blocks.
So yeah, BTC's proof of work scheme seems to have some conceptual flaws. I'm aware of innovation in the space, but none have caught on the way BTC or Monero have.
How do get the banks on board? Remember you only have the energy of a lightbulb between all of them and no way to pay them without incurring structural transaction fees of the sort the FA is claiming are solvable by this solution. Also remember the banks actively distrust each other and spend literally all day every day in every one of their businesses trying to beat each other in every possible legal/ethical way (and also sometimes some illegal/unethical ones). It seems somewhat implausible that out of the goodness of their collective hearts they will all decide to run your raspberry pi, play nice with one another and do the right thing.
Some problems are super easy to handwave away in theory but actually pretty difficult to solve in practise.
