Technology has advanced more in the last thirty years than in the previous two thousand. The exponential increase in advancement will only continue. Anthropological Commentary The opposite of a trivial truth is false; the opposite of a great truth is also true.
[While astronomers expected the early history of the Milky Way was quite chaotic, most had believed] that it since had been rather calm, ... But this turns out not to be true. Stars have been perturbed all the time throughout the Milky Way history.