[netsharc]

A lot of European currencies changed to Euro in 2002. A "fork" would've been if e.g. Deutschmarks were still accepted as legal tender, indeed some nostalgia shops/events like a "90's party" would accept this currency, but not the general economy. And indeed Deutschmarks can still be traded to Euros, but at a fixed rate. If a Bitcoin fork had happened and neither currency crashed, you can still trade each other like Dollars to Euros, as long as you can find someone who wants to sell you Dollars (BTC) and be paid in Euros (BTH) or the other way around.

[baddox]

For the analogy to hold, wouldn’t each holder of a Deutschmark also need to be given a (portion of a) Euro? That wouldn’t be easy to do with physical currency, since there’s no easy way to mark each Deutschmark currency as having been awarded.