[sujNansnam]

You may feel this way, but the society you live in does not.

http://www.glottopedia.org/index.php/Gricean_maxims

I find it unlikely that you really abide by this stated disregard of implicit assumptions - it would make communication impossible. The amount of information required to convey even basic facts is encyclopedic if you and your conversational partner don’t make use of assumptions about what the other already knows.

[sneak]

And indeed, reasonable people can disagree on the extent of what is safe to assume and what is not, and can discuss the nature of their belief in the reasonability of those various levels of assumption.

It turns out that if you abide by those linked rules, casual friendly discussions (things that are nonessential, for the most part) are pretty much ruled out. I find myself more often communicating with people who I have no explicit business or goal with, in social settings, and abiding by rules for cooperation on a team/task would make me a very boring person to speak to, indeed.