History and learning it indicates us that the planete changes and evolves. Another crucial conclusion we may come to after learning it is that also the pace of improvements develops. We are likely to observe it on the example of technology.
Living at present for most of people indicates that they have to spend most of their time in front of a computer. Thus, in this case we ought to not forget that it is really harmful for our health, as the way we see and hear different things is likely to be considerably impacted.