It's somewhat fascinating to see how Apple, Amazon, Google, etc. are taking over traditional publishing businesses with their platforms. Why were traditional p

It's somewhat fascinating to see how Apple, Amazon, Google, etc. are taking over traditional publishing businesses with their platforms. Why were traditional publishers blind to the fact that technology would replace them if they did not act? Or, if they were not blind of this fact, what prevented them from producing or investing in the new technologies themselves? What is it that makes old companies so slow to react to shifts in technology? There is some kind of inherent advantage that tech companies seem to possess: regardless of their original market, they tend to be capable of adapting to significant market changes, sometimes with the effect of consuming old markets.