Indeed. At university in the late 90s. Most people didn't have a PC. Then Napster. Then almost everyone did within the space of 3 years. Lots of tipping po

Indeed. At university in the late 90s. Most people didn't have a PC. Then Napster. Then almost everyone did within the space of 3 years. Lots of tipping points happened. So perhaps something similar - a tipping point of convenience. What's now on the edge, but could really change a consumption habit? Holograms? 3D printing?