For example, 99.9% of the smartphone market belongs to two huge corporations, which are not very different from one another (except marketing of course): https:

For example, 99.9% of the smartphone market belongs to two huge corporations, which are not very different from one another (except marketing of course): https://news.ycombinator.com/item?id=34299433 https://news.ycombinator.com/item?id=34299433