@michel_slm My understanding is that this is true of the Ethereum main net but operation costs are configurable so in theory you could run a network that charges nothing for operations. This would put the cost (electricity, compute time) on the nodes running the computations, so they would only want to run on a smaller network of users they trust (sort of a computing co-op).
But I don't see any way for it to work in a trustless/global environment. And there are probably more efficient ways to accomplish similar distributed computing when you trust your peers.
masto instance for the tildeverse