I did, Capitalism is not reversible. In it's struggle to overcome feudalism, it had to negate all the ways feudal lords could reassert them self's. The last feudal system was imperial Japan, and it was the only one that managed to deploy technology somewhat competently.
Consider what feudalism means, everybody does the same work their parents did. The only way to have new technology is for the big cheese in the castle to take an interest in it and force it on it's subjects by decree. Feudalism has no way to gage efficiency of it's tech deployment.
granted capitalism isn't very good at deploying technology either, it cannot distinguish between cost savings from reducing wages or cost saving from technical improvement. Since capitalism under pays workers, technology improvements appears to be more expensive, even when it would be more efficient. (People have to work harder for less reward because that is more profitable) That said it still does manage to be better at it than feudalism, because technical improvements still do appear as cost saving, even thought there is a distortion of reality by mystification through money calculation.
Socialism which aims to pay workers the full value of their labour, and hence can accurately gage the efficiency of technical improvements, and deploy it in a more optimal way than capitalism.
Consider that we now live in an age of increasing technical stagnation, most people only confuse increasing technical sophistication with actual advancement. A reason for that is the increase in rate of exploitation of labour. A Chinese official who seems to have grasped this, has complained about the long work hours in the Chinese tech sector and pointed it out as a barrier to technical innovation. This doesn't mean that china is going to stop exploiting its labour force due to this marxist insight, because they trade the extracted surplus for imported energy and food resources , that they lack in their domestic production. If they were to manage to negate these dependencies, it would become possible for them to move towards socialist production and gain the technical efficiency advantage. Obviously there is considerable bourgeois sentiment that would oppose this where it to become structurally possible. The implementation of a socialist system would have to go through the similar battle against the legacy mode of production remnants attempting to reassert their power, meaning that it would have to create all the adaptations that negate the attempts at reintroducing exploitation, and after that it could become irreversible.
To make this clearer there is a necessity for upholding something like this in the political arena for a while, but then it becomes structurally self-reinforcing.
Consider that capitalism had failed multiple times to assert it self against the feudal order, but after it managed to deploy coal powered steam-engine, capitalism became structurally self-reinforcing because the energy from that was much greater than the grain & water-wheels power that feudalism had used. For socialism the technology that will entrench this is computer aided planing and probably the energy-tech that outlasts oil, gas and coal. So basically a socialist economy will become structurally irreversible because it can deploy solar, wind, fission & fusion power in ways capitalism can't, This does mean more energy in the long run. For communism to become irreversible there's going to be a Dysonsphere and the capacity to do molecular production, which means that stuff costs nothing to make and lasts forever in (human context).