While the spectacular collapse of Mt. Gox is an epic failure that will have a long-lasting impact on the Bitcoin marketplace, it doesn’t necessarily spell the end of Bitcoin itself.
Napster helped start the whole era of digital music downloads, though the initial model wasn’t right. Napster was illegal, letting users essentially steal music, but the basic idea of having an easy-to-use digital music download service was valid. When Napster collapsed in 2001.