Or perhaps texting is just training us to lower our standard of expectation of what really qualifies as "communication".
I like to think that there's a law of conservation of stupidity, much like matter. Like matter or energy, stupidity cannot be created or destroyed. Some people will be less dumb about certain things. Over time, we may get better at some things, but we will get worse at others. The quest for knowledge is a sisyphean task, the only respite is to enjoy the process.