[tptacek]

Guilds and unions are not the same thing.

No matter what the "zeitgeist" is 20 years from now, guilds will still have the effect of artificially limiting the supply of labor to the fields they control, which has been a disaster for fields ranging from medicine to cosmetics.

[JJMcJ]

Craft unions, like in construction, are more like guilds than the industrial unions. You must qualify in one way or another to be a union member before you can get hired by a union company.

But in an industrial union, as an example get hired by an automaker with a UAW contract (and not in a so called right to work state), you are a UAW member.