In this context good faith means not saying you're here to negotiate only to stall for time while you're secretly planning to invade the other country in the background, which is exactly what the US did. So Iran has no reason to take US "negotiations" seriously ever again.
Pretty sure this is correct. You only notice it when it comes right out of the top. Other days it may be 25%, 50%, or 75% of the way up. And that's still bad for your oesophagus over the long term. My dad got cancer right at the bottom and one potential cause was chronic acid reflux (GERD leading to Barrett's eosophagus).
But there were no organisational problems according to Jack. Also do you really believe Block has reached peak productivity? Does any company ever reach it?