LSAT Logical Reasoning Question of the Day

Cell phone technology has progressed more quickly than almost anyone could have predicted. Only fifteen years ago was it even conceivable that handheld devices might be able to both store large amounts of data and access the internet. Yet, just a few years later, cell phones accomplish both of these things and are readily accessible to the public. While technology usually advances at predictable, moderate speed, advancements during some periods are so rapid as to be truly remarkable. The development of the cell phone provides an example of just such a time.

Which of the following, if true, most weakens the argument?