> by effectively removing all barriers to communication between different races and cultures
Often overlooked in my opinion is the significance of the unseen barriers to true, high fidelity communication. The ability to translate a written message from one language to another is surely beneficial, but even when sent between two parties who speak the same language, how successful is the "communication" really? Might we be vastly overestimating the magnitude of fidelity (the degree to which something is an accurate copy or translation of something else), where "something else" is often an extremely nuanced idea, with (often unseen) inter-relations to many other nuanced ideas?
For the communication of any given idea, the sender must first attempt to get some reasonable conceptual handle on the idea themself (depending on the complexity of the topic, this is massively error prone right off the bat), pack it into a message in a relatively (compared to the complexity of reality itself) simplistic language (that they likely have a rather imperfect grasp of), put (using flawed communication/articulation skills) that message into some medium of transport (text, audio-only, verbal discussion via teleconference, in person verbal discussion, audio only presentation, audiovisual presentation, etc), each of which comes with it's own variety of shortcomings, and then the receiver must do all the same in reverse, subject to all the same problems, plus some additional issues like the human mind's tendency to subconsciously supplement received communications with additional information from mental storage, a process not detectable to the conscious mind. (This is what they said, but what did they really mean?).
It seems to me a big part of the problem is that we've invested so much brainpower into figuring out how the physical world works, resulting in incredible technical achievements and tools that now have extremely widespread use, but we've invested a relative pittance into understanding how human minds and societies work. Just as nuclear weapons are dangerous in the hands of those who lack sufficient wisdom, might there be something similar going on with mass communication technologies? How would one even know the answer to such a question?