lliiffee

On a related note, I had a very early account (probably one of the first 1000 on the site). Years later reddit said they lost some laptop with account info, and so they reset all the passwords. My account was from before there was email. My attempts to get the account back all were met with responses that said "use email reset" and seemed to imply I'd done something wrong. My thanks for being a loyal user for over a decade.

I was surprised to learn recently that there is a cheap and easy to take action that will reduce your exposure to air pollution while driving: Replace your passenger-compartment air filter with a HEPA filter! Most cars made in the last 15 years or so have an air filter right before the AC. You can, for slightly more money, replace this with a HEPA filter. I haven't tested, but this will probably be very effective, since the car is such a small space and there is so much pollution outside.

Replacing the filter is an incredibly easy job on most cars. You don't need any tools or even to open the hood. You just pull out your glove box, and then the filter slides in and out.

I honestly think that in terms of health, this might be the action that has the highest ROI. (Amount of health improvement per amount of time / money invested.)

I was a little apprehensive, but decided to try this. I called my representative as well as both senators. In all cases (3:30pm on a thursday) I just got a voicemail. I left a short message in each case. Nothing could be easier.

Would you mind elaborating? I'd love to hear more.

Honest question: what if those self-driving cars have multiple people in them? With 4 people you quadruple the throughput, and this seems technically achievable with technology. Minivans and the like go further. I certainly haven't run the numbers vs rail but in most regions it seems like 4x ing the highways would meet current needs comfortably.

Some feedback -- this looks great! I'd love to have some kind of (la)tex support.

I sympathize, but do keep in mind that it would be very difficult to teach all the math at the same time. Imagine trying to run a course in French on analytic philosophy. If your students didn't know much French coming in, you'd be in a tough spot.

Just a reminder, I'm still eagerly awaiting this-- I check your site everyday! :)

Any way you could make this available outside the Mac App store? Apple seems to have decided I did something horrible and unforgivable by moving to a different country after creating an account, thus making it impossible for me to use the store.

To be a little optimistic, it does seem to me that the ESTA system (where an electronic check is done for visitors looking to use the visa waiver program before they travel) has greatly reduced these types of situations. However, ESTA is only used for visitors arriving by air/sea and not for people driving or walking over the border.

In any case, I myself (an american citizen) have been treated with extreme disrespect and a total lack of professionalism when crossing the border at this same checkpoint by car from the Canadian side to the American side. The particularly ridiculous part of this was that after I waited an hour for them to tear everything apart in my car looking for contraband -- at which point it's been verified that I was doing nothing wrong -- they continued to be completely antagonistic.

Edit: I filed a complaint about this, which did lead to a supervisor calling me back and talking to me on the phone for probably 30 minutes. The supervisor was reasonably pleasant, but unapologetic. (Is it reasonable that someone be forced out of their car in the middle of winter and not allowed to get their coat?) He claimed that he put a "warning" on the officer's record, though this didn't seem credible. He again and again seemed to imply that I might have been smuggling, after which I had to remind him that my car was extensively searched and cleared.

To build on fny's answer, there is one school of statistics (Bayesian statistics) where there basically is a "right" way to do analysis for any problem, provided you make the necessary assumptions (likelihood and prior) correctly. However, the most common statistical concepts (e.g. p-values or confidence intervals) are not in the Bayesian school