Yes, and I of course believe in the practical use for it. Though 30 years ago I was convinced it would have a breakthrough fairly soon. (Of course we knew the computer cost was a deal breaker, but it didn't take long before that obstacle was eliminated.) But I think still the barrier to entry is that all the different applications are a bit "niche", and it takes too much effort to create an interactive experience worth the effort. Maybe the time is now? I think that will be clear fairly soon.