Attention span shortened in the age of the internet

This video from College Humor is straightforward making a strong point: we lose our interested and donțt offer attention to things as we used to, we are multitasking which is a must for contemporary times, but losing grasp of the time we should coose how to spend it.

What do you think? is it like Adam says in the video? keep in mind the fact that some people grew up without internet and gadgets, and others did.