What percentage of storms/weather-related phenomena there are sufficient to ground a drone fleet but not severe enough to completely eradicate roads?

Just a thought.

If the weather is severe enough to delay ground traffic, what are the odds that a drone will be capable of flight/navigation? A full-sized, manned aircraft has fairly specific limitations (crosswind, turbulence, etc.) within which safe operation is possible. While there's at least one less life at risk (the pilot's), I can only imagine that current drones are even more tightly limited - not so much by legislation as by simple physics. If your aircraft has a maximum airspeed of 20kts, any wind exceeding that automatically grounds your drone fleet (unless you're into one-way missions). I've always nursed a pet suspicion that this is what caused John Denver's death - he was flying an ultralight; if the offshore winds ("Santa Anna", I think?) exceeded the maximum airspeed of his ultralight, he probably spent the last few moments of his life watching the shore get further and further away - with no way to rescue himself or radio for help (I don't believe ultralights carry an aviation comms stack).

Just sayin'.

Those who will not learn from history are doomed to repeat it - usually in summer school.

IIRC, the Drake equation was also a 'spitball' solution whipped off the cuff to address an inconvenient interviewer question. Subsequent tweaks have made it as accurate and reliable as when it was first spat out upon the world - and about as useless.

I'm fifty-five years old and my vision is still 20-20.

42.

(n/t)

Hey, he asked for a citation. I provided one. I suppose the Jackass party's astroturfers have mod points today.

*Sigh*. I was even careful not to call it Obamacare - although it does sorta make you wonder exactly which political party/lobby he belongs to, doesn't it?

Reputable enough for me.

I was unemployed one month ago. Thankfully, I didn't suffer any issues requiring medical assistance.

No, it started seven years ago.

Scientists call it the big rip.

Nothing ever happens the way I expect it to.

The bartender says "Why the long face?"

A tachyon flies into a bar . . .

I was far better off before the Affordable Healthcare Act took effect. Before, I could count on Medicare/Medicaid. Now (as a consultant with no company sponsored healthcare), those things are effectively impossible for me to get. I now have a $5,200/person deductable on a 70/30 plan with no catastrophic caps - in effect, I have absolutely no viable access to advanced medical care unless I enrich some insurance company somewhere out of my pocket (but only after I personally pay for the first five g's . . .).

That's one citation.