I agree they are not the same thing. But analogies are needed for perspective
I also agree that Bitcoin could be tulips. After all, I beleive Bitcoin is nothing but a confidence game (as are all assets). If the public loses confidence, for whatever reason, it could go to zero.
But if you see the future as I see it, the risk of it being a tulip, vs. the chance of it being thee new gold, is providing a crazy positive risk/reward