I've done partial eclipse photography through welders glass, but the quality isn't nearly as good as through a thin solar filter.

Agreed. It is hard to tell the difference between a small fanny pack and a fat money belt. Presumably a money belt is a part of clothing. And as far as I know no airline has upper limits on how much clothing you can wear: why not two belts? (Just more to take off for security.)

Here's another interesting question. If I have an item hanging from carabiner from my backpack (say, a harness and climbing shoes, or a cushion in a bag), is that a separate item, or does it count as part of the backpack? Nobody's ever bothered me about this yet.

I suspect the item-based limits may be counterproductive. If it's a choice whether (a) I walk into the plane with laptop in hand and backpack on back or (b) I walk into the plane with laptop in backpack and then pull the laptop out when I reach my seat, surely option (b) slows down boarding a lot more. (I tend to pull a lot of stuff out for a flight--laptop, Kindle Fire, phone, maybe headphones, cushion, water, snack--and lately I've been trying a little harder to have more of that in hand as I walk down the aisle so I can get out of the way of people faster.)

I assume if you pull a fuse, you can get the same functionality.

I am not sure fogging is necessarily a sign of ineffectiveness. N95 respirators are designed to keep particles away from the user. On inhalation they press closer to the face if correctly fitted. But a leak on exhalation will not harm the user much (maybe a little will come in at the end of the exhalation?). And i assume the fogging is from exhalation.

I suspect a better sign of poor fit is if the mask material is failing to move in and out with breathing.

(None of this is based on actual research, just speculation.)

I skimmed the bill looking at what exceptions are or are not in place. It has exceptions for game consoles and alarm systems. (I can kind of understand the alarm systems: a repair manual might help a robber to disable the alarm system.)

I was initially worried because there was no explicit exemption for small production runs and one-off devices. If I am a hobbyist and I sell a device to a friend, surely I shouldn't be legally obligated to write up a repair manual and provide parts for 3-7 years! Fortunately, the bill seems to only apply to products "for which the manufacturer makes available tools, parts, and documentation to authorized repair providers". So it looks like a hobbyist escapes the provisions by simply not having any authorized repair providers. (But what if I promise the friend to whom I sold the device that I'll fix it if it breaks. Doesn't that make me an authorized repair provider?)

Skateboards and roller skates have even smaller wheels. :-)

According to cyclistshub.com, the average cycling speed for mid-intermediate to mid-advanced cyclists is 14.5-20mph, so the difference isn't big. I'm not a very good cyclist myself, and I tend to average 12-14 mph on pavement on my hybrid bike, so I expect I would be well within the scooter range on a road bike.

The down side to the software fix is that you can't just use the key to get in--you have to use the fob. And the fobs can die, and programming a new one can be expensive.

K has the advantage that one can meaningfully compare temperatures by ratios or percentages, e.g.: "Where I live, it's typically 7% warmer in July than in January."

And ratios of temperatures are useful. For instance, around here in the summer, the daily highs (5 pm) are 5% higher than the daily lows (7 am). This means that if I measure tire pressure at 5 pm, and then find it's 5% lower at 7 am, the loss of pressure is exactly what is expected (assuming volume change is negligible) and hence not indicative of a puncture. Of course, sadly, to get the 5% figure I have to convert from Celsius to Kelvin, since Google doesn't give me weather reports in Kelvin, and I have to make-do with Celsius.

One can imagine someone who does their work "honestly", with no deceit or cheating or any other kind of dishonesty, but their task is simply evil. Think of an honest Mafia enforcer, who beats up people precisely as he promised to do so. Dishonesty is not the only kind of evil there is, nor even the worst.

Maybe not for swimming, but for other water sports it would be nice to be able to take a phone. E.g., for kayaking. I have had an older, non-water-resistant phone destroyed in a rental kayak's storage compartment which I was reassured would be waterproof but wasn't. (I ended up acquiring a wristwatch for kayaking purposes. I still wouldn't trust my current IP68 phone on a kayak trip where I expect to be soaked through.)

At least at the low end, watch water resistance isn't all it's cracked up to be in my experience. I think I've had two lower end Casios (I think one was 50m rated and the other was 100m rated) die after being too much in a pool. And I wouldn't be surprised if the water resistance were poorer after replacing the batteries.

You can also get prism glasses and keep the book upright on one's chest, so the load on hands is low.

Presumably, though, the relevant comparison to the X2D is 120 film. If 35mm film (36x24mm) is 20MP, then 120 film (56x56mm) is 73MP. Still short of the X2D, but not that far short.

"why squint with one eye through a tiny viewfinder when you could use the large LCD display and both eyes to frame and compose"

For far-sighted people, a viewfinder is great, because you can adjust its focus to your naked eye, while you'd have to pull out reading glasses or squint to use the back screen for precision focusing (assuming you're doing manual focusing and focus peaking isn't good enough, which alas it's not on my A7R2). I expect a lot of camera users are like me in aging into this.