Vonnegut is trying to say that technology is cheating people of what they can become because they don’t let you do things to your full potential. He seems to feel strongly about the issue. He is both right and wrong for several reasons.
He is right because people have given in to technology and have given up on hard work and have just let the machines do everything, for example electrical wheelchairs, and calculators (to a certain point). He is also right because without technology we wouldn’t have nuclear war threats.
He is wrong for a few other reasons, some being that some humans have problems so they need technology to help them through everyday life (wheelchairs). And also because sometimes people have a shortage of time so things like calculators are good because they are efficient.