That's a bit dismissive. Goedel was correct about making the US a dictatorship. The fact that the amending clause allows unlimited amendment (particularly of the amending clause itself) means a series of malicious amendments could irrevocably change the constitution to that of a dictatorship and forbid returning to a democracy. Now maybe people would just give up on the constitution at that point, but in terms of the overall legal system he's dead right.
I've always thought it was more likely over article 2 section 3, which allows the President to adjourn both houses of Congress indefinitely under certain circumstances. If one was expecting to be impeached, for example, a little procedural hiccup on the timetable of adjournment would be sufficient to suspend legislative business altogether.
When we get to that level of a flaw, it is nice to remember that technically our own hollowed constitution is simply an illegal overwrite of the Articles of Confederation.
[Edited to fix: date of refrigerator comment upper bounded by 1953, not in 1953]. So it's possible he formed the opinion pre-freon, but it seems more likely that it was during the Freon era.
Ammonia and other nasty chemicals remained in use well after then. For example, apparently GE sold their Monitor Top-style fridges with sulphur dioxide or methyl formate as the refrigerant until at least 1936 and they stayed in use for decades after they were discontinued.
My parents had one of those and used it until the early 2000's as their "garage beer fridge". They sold it for a substantial amount to a collector when they moved. Dad was a chemical engineer and I'm not sure he knew how toxic the refrigerant it contained was - he probably would have gotten rid of it sooner if he'd known.
To be fair CFCs are toxic to humans, but only once they escape to the upper atmosphere to decrease the LD50 of sunlight. Of course in 1953, there was no way Erdos could have known that.
Ugh I meant Godel. All of these mathematicians get me confused. Because of his incompleteness theorem, I'll have to leave your other question unanswered.
