What are some examples of 'common sense' which are nonsense?
Wikipedia defines common sense as "knowledge, judgement, and taste which is more or less universal and which is held more or less without reflection or argument"
Try to avoid using this topic to express niche or unpopular opinions (they're a dime a dozen) but instead consider provable intuitive facts.
Yeah, them and what army? (Well, the PLA, but going into MAD and great power military strategy would be too much of a digression)
A classical example of Westerners thinking human laws are laws of physics somehow. I assume Westerners, anyway. It'd be weird to hear this from anyone recently imported.
They are more similar than they are different though. The numbers are bigger and the limits aren't known, but they do exist. Many countries have felt the pain of excessive debt, the arguments that it can't happen to the US are essentially that the US is a unicorn country.
The US is a unicorn country because the US dollar is the primary currency in the world. If the Euro supplanted the US dollar for that position, then the problems with excessive debt could absolutely happen in the US.
That's becoming less true year over year though. Excessive debt can make it less attractive as a standard in addition to the growth of both the Euro zone and BRICS.
True enough. And Trump could very well accelerate that with his economic temper tantrums. Still, I don't know what currency BRICS would settle on; certainly not the ruble, not after Putin cratered the whole country's economy. The yuan?
Hmm. Business budgets are pretty similar to household budgets.
In government budgets thing do get a little fuzzy, because historically they always run a slight deficit until they fall to war or revolution and "reset". If it's a rich country, they can raise taxes whenever they feel like, too, assuming they don't care about re-election.