Convexity can be seen as explosive success that grows exponentially, rather than linearly. This is why a popstar’s new album will sell far more albums than a different artist or less fame but arguably greater talent. Success, in terms of the number of sales, or number of fans, is not a consequence of great talent but popularity. The bad news is that popularity can often be attributed to randomness; the exact causes for why one brand, or design, is far preferred over another is not precisely known. There is also a great tendency for humans to stick with known or “trusted” brands, which explains why certain brands can continue to grow even with bad products. The good news is that the rise of the internet and digital media is now far easier for anyone to promote themselves.