That's the point that I find amusing about his "rant." Why should I or anyone reinvent a tire model when there exists one that fits the need? Should I really model a '69 Corvette from scratch (and waste 3 or 6 months) when there is a perfectly adequate one that someone has painstakingly modeled and made available for just this purpose? If I can't find a model, I'll make one. If a model is needed for commercial use and the only ones available are not for commercial use, I'll make one. If, for some reason, I want to do it myself for self-gratification or growth experience, I'll make one. Otherwise, I'll use one already available. Someone mentioned "Creativity" and hit the hammer on the nail. Artistic Creativity doesn't imply "creating from the bottom up or from nothing", it implies "creating from what's available to communicate your message."