I've been reading the book, 4-Hour Workweek by Tim Ferris and stumbled upon an interesting point.

"Being busy is a form of laziness - lazy thinking and indiscriminate action."

Just because you spend 8 hours a day doing all kinds of tasks doesn't make you productive. It's more about what you do than how much you do.

This goes back to the Pareto Principle or 80/20 rule which states, 80% of your results come from 20% of your activity.

What do you think?

I think it can be true in some cases.

Like Doug said in an interview, we should define priorities, and get things done according to these priorities, in our everyday life.

It's more about what you do than how much you do.
I totally agree with that.
I think being busy is indeed productive, when you are busy with the right things, or busy choosing the right action to take.

This goes back to the Pareto Principle or 80/20 rule which states, 80% of your results come from 20% of your activity
As said on an article I saw on the community website, this is one of the advantages of planning your days (leave some time for ... "improvisation" though lol) :: we can get busy a whole day doing a single thing when we have no plan, when we don't know where to start, but by getting a schedule (and sticking to that schedule), we could get the same results after 2 or 3 hours of organized work.

I haven't read that book yet. It's on my list though. I believe that there are two forms of being busy...productive and non-productive. I don't know that I would say being busy is a form of laziness. However, I do agree that its more about what you do than how much you do.