The article actually addresses this, but I feel “indie games bubble” is simply too broad a term. Is there a medium-high budget indie game bubble? Maybe. But can indie games in general even have a bubble? Fuckloads of indie games are passion projects, or made from crowdfunding money, or otherwise not based around the idea that they have to be the “product” of a sustainable business, making the whole idea of a “bubble” pointless. If the bubble pops, will itch indies stop making games? Will passionate solo devs languishing at double digit Steam review numbers stop releasing games? I don’t think they will.