Indeed, the language has some remarkable practical benefits. Personally, I’ve made friends around the world through Esperanto that I would never have been able to communicate with otherwise. And then there’s the Pasporta Servo, which provides free lodging and local information to Esperanto-speaking travellers in over 90 countries. In the past few years I have had guided tours of Berlin and Milan and Douala in Cameroon in the planned language. I have discussed philosophy with a Slovene poet, humour on television with a Bulgarian TV producer. I’ve discussed what life was like in East Berlin before the wall came down, how to cook perfect spaghetti, the advantages and disadvantages of monarchy, and so on.

I’d like to add that,unlike other projects, Esperanto has an organised movement in sub-Saharan Africa.