"Hide your loved ones. Bicycles are coming."<p>The evolution of bicycle would indeed be an interesting case study (if not studied already). After the initial depiction, it was pretty incremental thereafter, with some crazy things in-between (penny-farthing), don't you think?<p>"When the iPhone first came out, the biggest objection was its lack of a physical keyboard. But with additional predictive technology, a device with no keyboard was usable without fanfare."<p>And Nokia had it well-before Apple, but, oh well, such and such.