The problem last time around is always put down to bandwidth and the need to download plugins. But actually I thought content was the larger problem. I actually bought and paid for CosmoWorlds and I still rate it up there as &#x27;best software ever&#x27;. The problem with it was that nobody was using it, the learning curve wasn&#x27;t being taken by that many people. I found myself &#x27;the only one&#x27; using VRML properly, as in proper lighting, an environment that you could explore rather than &#x27;an odd shape you could inspect&#x27;.<p>I expect that games will be important to 3D #2, but still, it will be the &#x27;unwillingness of people to learn the new tools&#x27; and imagination that will dampen whatever we do with it.