The article hits on an entire class of silly arguments I've seen against bitcoin from the start: people claim that bitcoins will be worthless because they will

The article hits on an entire class of silly arguments I've seen against bitcoin from the start: people claim that bitcoins will be worthless because they will be too valuable to trade. The language used for "too valuable" may vary (scarcity! illiquid! deflation!) But, as the author notes, that's not at all what matters -- all that's necessary is that they're tradeable and people have different values for a bitcoin at a particular time.