I can't quantify it any more than anything else in this thread is quantifyable. However, I see a trend in the problems major platforms are having in that they're failing serve lots of niche communities well, and if we've learned from history, consolidation of business under a generic banner like Walmart breeds a wave of specialized, boutique businesses. Shopify is already doing this somewhat to Amazon, and I believe it's a good bet to say this will happen to other platforms in the next decade.

There's already been conversations here about how to disrupt Google, and you can't do that by trying to be be Google But Better. You do it by picking a subset of Google and being very, very good at it.