brittohalloran

The Pixel 3XL and others had it right - fingerprint sensor on the back (natural spot for your pointer finger), still allowing for the whole front of the device to be the screen.

Back of the envelope on storage capacity: - Looks like about 200x200 px grid - 200x200 = 40,000 total possible bits - Assume only 75% of these are available for data due to QR structure and redundancy features - Leaves about 30,000 bits or 3-4 kb capacity in that one image - Comes out to about 5 reams of paper per mb of data storage

This would be a better "ping pong balls on a plane" interview question for comp sci candidates.

Great comparison. Diffuse and delayed consequences that would require a "painful" change of habits now to prevent. In a way cigarettes are an easier problem to solve because the consequences are personal and personally preventable. No "drop in the bucket" collective action problem.

Super interesting idea. One of the cons could be that having your employees not personally invested in the outcome of your venture could make them less likely to be "fully committed" (i.e. long hours, going above and beyond). You might be worried about higher levels of apathy -- "if this doesn't work I still have a job".

If the business works, I'm thinking the transition from the fund swat team to "real" employees might be difficult as well, probably at a time when you need to be firing on all cylinders.

> you need lidar and a fully mapped road

To play devil's advocate - somehow I drove myself to work today, and the hardware I'm running is just two moderate resolution limited field of view cameras. Not an expert, but from first principles it should be possible to pilot a self-driving car with cameras only, given enough processing power and a smart enough agent. Maybe those last two aren't there in 2018 though.

Did you look at Resin OS at all (resin.io)? No affiliation. Ship a container to your Pi that you can develop on your laptop and then have built for the ARM architecture on Resin's server. It looked very good last fall when I was toying around with Pi video but never pursued it.

Unbelievable. Thanks. The top decile actually consume over 75% of the alcohol (by number of drinks, probably less by dollars)

Do you have any data on this? There are certainly heavy consumers but my (not data backed) feeling was that there's a fat tail - if there are thousands of high consumption binge drinkers then there are millions of casual "several drinks a week" drinkers that would dominate the actual dollars spent.

Also, unlike say internet bandwidth, there is actually a logistical limit to how much alcohol you could consume in a week, and it doesn't seem like it could be much more than 1 order of magnitude over the average casual consumer (3-4 drinks vs. 30-40 per week).

As a 10 year engineer in the medical device industry I've slowly come to believe the root cause is not greed for more profit, but actually runaway altruism.

All across healthcare, providers, scientists, administrators are faced with millions of tiny choices every day: should we spend more money to improve outcomes. Should we add that extra feature to this device - costs more but improves care a little. Should we use this more expensive material - costs more but is probably safer. Should we do additional testing - costs more but we'll be more sure it's safe. The calculus of incremental value vs. cost is subconsciously seen as inhumane across the industry -- it's seen as starting down that slippery slope that ends with a "dollars per life" number which feels wrong to everyone. Nobody wants to be the person who traded someone's health for a buck.

I'm not necessarily condemning it, I want the best possible care for my children, but I do think that (like a lot of big socioeconomic problems) this comes back to incentives.

It costs $45 (+ Pi Zero W + Camera + SD card = approx. $90 total) and could be left somewhere analyzing video frames and communicating results.