By Michael F. Duggan
If he had only done his work to explain Brownian motion (which won him a Nobel Prize), or discovered special relativity, or general relativity, or had made his contributions to quantum mechanics, Albert Einstein would have been considered one of the greatest physicist of the 20th century. As it happened, he did all of these things.
Darwin changed how we saw ourselves as natural beings. Freud changed how we saw ourselves as conscious beings. Einstein changed how we saw everything. If Darwin had never lived, several other people (e.g. Alfred Wallace) would have described natural selection by the late 1850s (and in fact independently did). Likewise, modern psychology would have proceeded with or without Freud. But without Einstein, it would have likely taken numerous great physicists and additional decades to have accomplish what he did.
Sure he was wrong about quantum entanglement–non-locality/”spooky action at a distance”–and quantum mechanics in general. But this was likely a case of temperamental delusion rather than an intellectual error or failure of imagination. Einstein’s cosmology theorizes a simple, elegant, classical model–Relativity–that was based on an assumption of how he would have desired the universe if he were God. Thus he could not abide the probability, randomness, and disorder of the quantum world (“God does not play dice with the universe,” although one may certainly play dice in a deterministic world as well).
Einstein considered his greatest mistake to be his cosmological constant–a theoretical bandaid he devised to make relativity work at a time when the universe was generally assumed to be static. After he died, this “fudging” theory to make another theory work, turned out to be true, and is useful in formulations describing a universe we now know to be expanding.
Albert Einstein died 70 years ago today at 76.