Multitasking - are you sure?

There are so many busy people, so many multitasking people. They talk on the phones, eating at the same time and reading the notebooks, while listening the news on the radio. Nowadays being a multitasking person is a symbol of being modern and yes - of being the cliche "cool".

But how it reflects on the productivity? See below and make you conclusions.

Br,
K.K.