Job Security - Where did they all go?

In class we talked about a series of jobs that are no longer relevant due to the advances of technology and, more specifically, the internet and the web. As for the main question of where did all the workers go, I don't really have that complex of an answer. I just believe they were forced to move onto to other things. Some likely moved into the very technological replacement that put them out of work, and some probably found other jobs. This got me thinking about the one thing that many people don't consider when looking for a career path; job security. Lets say you spend 8 years studying and working with everything there is to know about newspapers right before they become obsolete because of digital newspapers. It's kind of an obscure example, but in such a case you would likely move into digital newspaper production to further your career and to stay employed. If you instead work for a retail company as a cashier that completely moves all of its sales online, it puts you in a position of loss with nowhere to transition. For people in that situation, I just assume they found other work. The best case scenario would be a career that has its demand increasing. The next best would be a career in an area that, if it were to die, would at least have transition options. The case of my second example would be the worst case scenario. Although job security is sometimes very difficult to predict, it's something that needs to be considered to avoid that worst case scenario.

eCommerce - What wouldn't I buy?

What's interesting to me is the idea that when the web first began it was amazing to see the few items we could purchase online, whereas now it is amazing to consider the few items that we CAN'T purchase online. The total flip in that sense seems to come up in the most interesting situations. Maybe it's just me, but the idea that our thinking flips as certain aspects of life become the norm intrigues me. Either way, the only items the come to mind that I wouldn't but online are the obvious ones. I don't see myself purchasing a house or a car online in almost any circumstance. Then there are some items that I would hesitate heavily before purchasing online depending on the type, such as food and medicine. Certain foods and certain types of medicines I would hesitate to purchase online. For example, I would be fine purchasing name brand over-the-counter headache medicines or maybe even general allergy medicines, but I would not purchase strong pain medications online. When I think about it, I think the only reason I wouldn't buy the first two items I listed online is simply because I can't see them in person. If I say the car or house in person before hand then I might go through with payments online but I wouldn't find and order a car or purchase a house without ever seeing in in person. I guess I just don't like the idea of paying a ton of money for so much uncertainty.