Amazon made its first 10x improvement in a particularly visible way: they offered at least 10 times as many books as any other bookstore. When it launched in 1995, Amazon could claim to be “Earth’s largest bookstore” because, unlike a retail bookstore that might stock 100,000 books, Amazon didn’t need to physically store any inventory—it simply requested the title from its supplier whenever a customer made an order. This quantum improvement was so effective that a very unhappy Barnes & Noble filed a lawsuit three days before Amazon’s IPO, claiming that Amazon was unfairly calling itself a
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