Yes, one can. My complaint here was that it was not relevant to what was being discussed. It's similar to a discussion on the latest Postgres being hijacked by yet another languages war.
> In life, as opposed to pure math, we often need, and do, judgement calls based on incomplete data, calls that don't actually follow with 100% logical certainty, but are nevertheless quite clear from the general context
Agreed.
> 100% correctness is for the inhabitants of Vulcan.
Disagree. You make the best decision based on the incomplete data available, and your own value system. That decision is by definition "correct". There are always costs to any path.
> to my eyes you totally look like a pro-Rand person
This is irrelevant to the discussion, except as an ad hominem. Ad hominems are justified in a very small number of cases where directly relevant to the situation. Learning that an investor has a history of playing hardball with his portfolio companies is relevant when examining his term sheet. Dismissing entire arguments due to them not being branded right is not.
I am not trying to defend myself from belonging to a certain tribe or not, as it would not add to the discussion and would probably detract from it by taking it further down the road to the Trump/Clinton debates' tone. I am attempting to clarify arguments, values, premises and ideas for myself and others. You may assume it is propaganda: my own ideas, that I am trying to convince others of.
> because of the overall tone of the responses
What is the appropriate tone for responding? I believe I was sufficiently polite and civil, and fair in presenting my position. Please help me improve my communication style by pointing out how this was not the case.
> "oh, I discovered this blunt tool on the internet, let's hammer every conversation into a inquiry for objective truth"
It predates the internet. Technically I was first exposed to these ideas in Critical Thinking classes in high school, although self-study of logic and various books and life experience helped pad out most of it.
I would just add that the complexity of objective truth, and its lack of total discoverability (due to personal subjectivity, etc.) does not imply its inexistence, or the inadvisability of seeking to get closer to it. My philosophy chops are not developed enough to discuss this one much further though.