Also we don't have off-world colonies, flying cars and replicants. Judge it as a movie, not as a prediction. If you really want to fanwank it as correctly repr

Also we don't have off-world colonies, flying cars and replicants. Judge it as a movie, not as a prediction. If you really want to fanwank it as correctly representing some future level of technology, though, imagine that in the future radio-frequency communications have been found to cause cancer and have been banned.