I haven't changed what I've said about the canopy for a number of years. In fact I remember having this conversation twice before on TOL, and I think either you or JR, or both, were involved in at least one of them. I remember having to remind whoever it was , repeatedly just like this conversation, that I'm not talking about VCT. Since I've had to do that over and over in this conversation as well, I'm guessing you think I started this conversation defending VCT and have hedged back to a 'mere curiosity canopy' version you think I'm talking about now. You are so geared up to smack down VCT that any mention of 'something capping the atmosphere', or 'canopy' for short, that you don't actually read what I've written.