

Fair, but Marx wasn’t a technocrat. He was primarily concerned with how the working class could overthrow capital, and the working class was primarily illiterate - transatlantic telegraphs wouldn’t have been a relevant tool to them in their ceasing of capital from the bourgeoisie.
Marx specifically wrote the Communist Manifesto in easily-understood language so that the few literate members of the working class could organize and recruit those who wouldn’t have been able to read it themselves. Even if he understood the telegraph to be a revolutionary technological innovation, it wouldn’t have been relevant to an impoverished working class that did not have the luxury of basic education.
Not that it would have been impossible for anyone to see the potential significance of the telegraph back then, but that was never going to be a Karl Marx who optimistically thought the revolution could happen within his lifetime (and here we are almost 160 years later not even a step closer to that reality)
Huh, it works great on my android os Nvidia shield