Dear Wanda,
People were complaining about the explosion of knowledge at the very least by the early nineteenth century. And I wouldn't be surprised to find medieval people grumbling that they couldn't keep up with all of these newfangled inventions (to take just one example, water mills not only powered milling grain but sawing logs).
One thing that has changed is the level of secrecy, because of international patent law. It may seem counter-intuitive, but the mortality rates among upper class women in the eighteenth century from child-birth may have been higher than for lower classes. The reason? the higher classes hired doctors who, in difficult cases of birth, poked around with hands which had been recently doing autopsies: result, pueperal fever and death. The lower classes just hired mid-wives. The people who invented forceps to deal with the difficult births managed to keep their invention secret for about fifty years.
Mark