The problem is that infants can't be vaccinated for things like measles until they are 6 months old.
So people who aren't vaccinating their kids and have their kids running around spreading the measles virus in public places are risking the lives of any infants under 6 months of age who haven't even had a chance to be vaccinated.
In Chicago now, you have to pay for bags (plastic or paper) at any major store. It's 7 cents per bag. I have no numbers on how effective it has been, but everywhere I go, I rarely see anyone getting the bags from the stores.
Programs like this and NYC's styrofoam ban seem to be very effective in the "reduce/reuse" portions of reduce, reuse, recycle. Can/bottle deposits are effective too. I doubt very many cans in NYC aren't recycled.
It's a great teaching manual and helps build up common sense to learn about what can be treated at home and what is serious.
I admire the PR stunt.
3M in 24h is a lot of sign ups regardless (if they had 200M users a year ago, that's over a 1% jump in total number of users), but it would be interesting to know how many more than usual that is.
[1] https://m.signalvnoise.com/stimulus-1-0-a-modest-javascript-...
The opportunity is to figure out how to better utilize the voice based medium. No one has done it yet. When they do, it will also likely improve the experience around screen readers and accessibility.
I think the new feature in iOS where it guesses what I want to do (send a message to ABC, for example) based on previous patterns is promising. A whole screen of these actions would be great.