Yeah, I very clearly remember a "the sky is falling" sentiment when Steam launched a download only version of Half-Life 2. Or take Netflix, very few thought th

Yeah, I very clearly remember a "the sky is falling" sentiment when Steam launched a download only version of Half-Life 2. Or take Netflix, very few thought that would be the streaming juggernaut that it is into today. Alas poor Blockbuster, we knew you well.