Is not pansexual just a way of saying one is bisexual?

I don't even know what the mainstream definition of pansexual is given how overly-specific people are at self-labeling nowadays, but I've thought of pansexuality as almost like a mixture of hypersexuality and the ability/inclination to "liberate" sexual emotion from the debasement of "restrictive" secondary emotions like dignity, shame, the fiending for a consistent self-identity, [i]etc[/i]. Basically someone who is capable of liking whatever they like at that moment, without driving themselves insane over what the implications of that are supposed to be. The example that always comes to mind for me is this woman who described herself as pansexual and was able to have no-contact orgasms by sitting still against tree trunks, closing her eyes for a few minutes, and feeling connected to all of the vegetative life in the area. It's a sort of transcendence of the sexual parochialism from which most people willingly suffer their entire lives.

But that's probably not at all what most other people mean when they say it nowadays.