See slight edits to beginning of previous comment.
Notice you omit many words.
Am lazy, arbitrary choice. Helps to knock out this stuff quickly (fairly typical conversation with the intelligent-but-uninitiated).
Can attribute growing prosperity, stronger economy to markets despite interference rather than markets and interference on the whole because have some theoretical understanding of how growth works. Smith's Wealth of Nations, founding text of economics, is book all about why some nations rich and other nations poor. Like how physicists could know what was their theories working and what was due to friction and air resistance long before possibility of designed controlled settings to prove beyond any doubt.
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.