- polio cases worldwide have dropped to well below 100 per year since 2010 (except last year, 175)
- same sex marriage if you want to focus on the us
- Sharp drop in air travel with the corresponding benefits on global warming. Recent, but analysts seem to agree that business travel will permanently drop to between 1/2 and 1/3 of what it was before now that the world has discovered video conferencing is a thing.
There hasn't been a reported Polio case in the west for over 40 years. Likewise, according to Wikpedia, LGBT individuals represent 5% of the population.
I don't mean to downplay these accomplishments, but I think the impact of Uber/Lyft is greater than these on a simple per capita basis. Maybe that's a American-centric view but it's far more realistic for many Americans than "no polio cases"
It's a privileged american centric view on top of an american centric view. Lots of people use uber and lyft here on HN, and in other corners of the internet occupied by people satiated with a tech worker's salary. But for most working people, rideshare remains a frivolous cost that can quickly add up to the price of whatever you were doing at that destination, and it is not this world changing thing that some imagine, but just another service for the wealthy.
