> you seem to be talking about learning things in a certain order so that the total investment is lower
I think he’s actually saying that by learning Esperanto first, you learn *Spanish* quicker. Not just the total investment is lower, but the investment required to learn Spanish is lower.
Yes, by “learning things in a certain order” I include the case of learning Esperanto before learning Spanish (as opposed to doing it the other way around, which would presumably be less efficient for a native English speaker who wants to learn Spanish).
> you seem to be talking about learning things in a certain order so that the total investment is lower
I think he’s actually saying that by learning Esperanto first, you learn *Spanish* quicker. Not just the total investment is lower, but the investment required to learn Spanish is lower.
Yes, by “learning things in a certain order” I include the case of learning Esperanto before learning Spanish (as opposed to doing it the other way around, which would presumably be less efficient for a native English speaker who wants to learn Spanish).