seem to remember reading that by now, internet companies have created more value than was destroyed in the dot com crash. Maybe people are just speculating wil

seem to remember reading that by now, internet companies have created more value than was destroyed in the dot com crash. Maybe people are just speculating wildly because they stakes are high - maybe that's not even wrong behavior? Also interested in the "giant penises" description of high building. Isn't it simply space efficient to build high rather than flat? At least if space is restricted, like on Manhattan Island, it makes sense. Maybe not so much if you are located in a desert with unlimited space in all directions. Also, there is a signalling aspect to marketing. Being able to afford expensive marketing (including huge building, expensive ads) proves that you have at least some kind of success so that you were able to come up with the money.