The boundaries that intrigue me are the internal ones - particularly the work/personal one. It seems that many traditionalists can't live without it. Another could be called the market segmentation barrier - for example, as used by people with different Twitter accounts for different audiences. Should we completely remove all of these barriers? Or do we just need to be aware that they are there and remember that we *can* remove them? I've been working progressively to just remove them whenever I am aware of them.

"All in all it's just another brick in the wall..."