"Our knowledge is always incomplete. The best one can hope for is to learn over time."
"There is a principle which is a bar against all information, which is proof against all arguments and which can not fail to keep a man in everlasting ignorance-that principle is contempt prior to investigation."
I have found the latter above the route to very valuable change throughout most of my Adult Life.
The @jollytinker statement is the only way to expand on ones knowledge base, stick with the subject and all the necessary variables will start to show, becoming inclusive in subject discussion.
My introducing a variable is as valid and relevant as a reference to a ADEC Type Bearing or Fixed Headshell vs Removable Headshell.
Decisions being made are not only resulting from the tangible or visual, there is much more, and unique to each individual brain chemistry as a result of stimulus, is a massive factor.
Hence, not one person can vouch for another each encounter is totally isolated and unique, hence each report can only be taken lightly, it is the individuals reaction to the experience, that only matters, and if it is one they would like to maintain.
One mans ADEC 9 Bearing - Magnesium Structure is another mans Knife Edge Bearing - SS Structure, or Viv Labs Oil - Carbon Fibre Structure.