New technologies often emerge slowly, existing alongside current ones. For example, in the field of communications, the telegraph didn't make the postal system obsolete. People just used them for different purposes. Similarly, newspapers used telegraphs to send and receive urgent information from reporters in the field. However, political commentary and human interest stories could be transmitted more affordably via the post office. Today, disruptive technologies do often immediate make older tech obsolete. Let's look at a few examples of technologies that may become obsolete in our lifetimes.
