[deleted]
John,
quote: for instance, anyone living 500 years ago would consider it common sense the sun is a hot orange orb, moving across the sky and anyone thinking it was really the earth spinning the other direction either had their heads in the clouds, or had been drinking too much wine. A point I've made in some of the prior contexts, that time is not so much a vector from past to future, but the process by which future becomes past, seems quite commonsensical to me, but it is also reasonable for others to assume the geometry of spacetime is physically real, because so many well educated people believe it.
My definition of Common Sense is:
Common Sense = Self-esteem Logic Predicting Consequences
Self-esteem is generated within social groups. In a healthy group Respect is shared between members as they each learn and share useful information. What is useful in one group (Earth as the center of the Universe) does not translate completely to another group (quantum physicists). Though there will be some admiration (emotional) and appreciation (social) depending upon the situations. A physicist and the Earth is the center of the universe person are both certainly able to appreciate art, and the talents each might have. But bitterly disagree upon their perspectives of cosmology.
To "fit" within a social group of quantum physicists requires practiced experience in expressing common emotional, social, and communication processes. The knowledge set changes from one physicist to another; string theory, GR, Gravity Loops, Quantum Causality... To have self-esteem within a group, a member must be able to learn and share information that is "useful" for the related group. Therefore, a foundation of knowledge is required depending upon specific groups. Artists and Politicians may become extremely bored listening to banter concerning Axiom of Choice as it applies to the foundations of mathematics. Artists talking about types of art media might be equally boring to a physicist; not all.
So to develop Common Sense within a social group, depends upon what provides for Self-esteem within a social group so that a member is "useful" to the group.
A farm-hand is well versed in issues of the farm, and was taught the related logical relationships and consequences by their parents, and self-esteem reinforced by practiced experience and social engagement with other farm-hands.
Without Self-esteem relavent to a social group, a person will defer (and reasonably so) to those more experienced in the context of the social group. Arrogance (loathing of others) has no intention of sharing useful information, and often is deceptive to acquire a personal agenda outcome. Arrogant people in a social group are usually political (social/emotional) more than logically useful.
So this is more detail regarding how Common Sense is common to everyone; with self-esteem being relavent to social groups in which we want to become involved.
Teaching Common Sense (as I defined in the related lexicon) can allow for people to transition more smoothly from one social group to another, from one career to another, ... from one perspective to another.