How do you come to that assumption?

By linking to a peer-reviewed paper on the subject?

A nuclear warhead has lots of trouble to even "hit" an asteroid.

Essentially every space mission we have launched for the past several decades has had to navigate with a far more precision than that needed to get close to an asteroid and activate a single trigger event when close by.

We send spacecraft on comparable missions all the time. And it doesn't really take a spectacularly large payload to destroy (yes, destroy) an asteroid a few hundred meters in diameter. 1/2-kilometer-wide Itokawa could be blown into tiny bits which would not recoalesce, via a 0,5-1,0 megatonne nuclear warhead, a typical size in modern nuclear arsenals (in addition, the little pieces would be pushed out of their current orbit).

I know it's a common misconception that "nuking" an asteroid would simply create a few large fragments that would hit Earth with even more devastation, but that's not backed by simulation data. And anyway, even if it didn't blow the asteroid to tiny bits (which simulations say it would) and even if it didn't push the remaining pieces off trajectory (which they say it does), anything that spreads an Earth impact out over a larger period of time is a good thing - it means the higher percentage of the energy that's absorbed high in the atmosphere rather than reaching the surface (less ejecta, lower ocean waves, a broader (weaker) distribution of the heat pulse, etc), the weaker the shockwaves, the weaker the total heat at any given point in time, and the more time for Earth to radiate away any imparted energy or precipitate out any ejecta cloud. If the choice is between 15 Chelyabink-sized impactor (most of which will strike places where they won't even be witnessed) or one Meteor Crater-sized impactor (same total mass), pick the Chelyabinsk ones. 50 10-megatonne meteor crater impactors or one 500-megatonne Upheaval Dome impactor? Pick the former. The asteroid impacts calculator shows the former generating a negligible fireball and 270mph wind burst at 2km distance, while the latter creates the same winds 25km away (156 times the area) and a fireball that even 25km away is 50 times brighter than the sun, hot enough to instantly set most materials on fire.

But that's all irrelevant because, quite simply, simulations show that nuclear weapons do work against asteroids.

What we need is enough detection lead time to be able to launch a nuclear strike a few months before the impact date (to give time for the debris to disperse). There is no need to "land" or "drill" for the warhead. There is no pressure wave; instead, an immense burst of X-rays is absorbed through the outer skin of the asteroid on the side of the explosion, causing it to vaporize (unevenly) from within, especially near the ground zero point, and creating powerful shockwaves throughout its body. In addition to ripping it apart, the vaporized material and higher energy ejecta flies off, predominantly on the side where the explosion was detonated, acting a broad planar thruster.

Because the value of gold and silver is somehow less arbitrary than electronic bank balances.

On the other hand, if they're doubling capacity, then you only need half the number of cycles (it actually even works *better* than that, as li-ion cells prefer shallow charges and discharges rather than deep ones - but yes, fractional charge cycles do add up as fractional charge cycles, not whole cycles). If you have a 200km-range EV and you drive 20 kilometers a day, you're using 10% of a cycle per day. If you have a 400km-range EV and you drive 20 kilometers a day, you're using 5% of a cycle per day.

Top commercial li-ion capacities are about 30% more than they were 5 years ago. And today's batteries include some of the "advances" you were reading about 5 years ago.

I'm sorry if technology doesn't move forward at the pace you want. But it does move forward when you're not looking. Remember the size of cell phone batteries back in the day?

Does your book have dinosaurs and hot android sex? I don't just read anything, you know. I have my standards.

This behavior is inherent in being human. You think conservatives don't partake of hysteria?

+10 Sad but True

From Bagehot's The English Constitution:

Generally speaking, in an electioneering country (I mean in a country full of political life, and used to the manipulation of popular institutions), the election of candidates to elect candidates is a farce. The Electoral College of America is so. It was intended that the deputies when assembled should exercise a real discretion, and by independent choice select the President. But the primary electors take too much interest. They only elect a deputy to vote for Mr. Lincoln or Mr. Breckenridge, and the deputy only takes a ticket, and drops that ticket in an urn. He never chooses or thinks of choosing. He is but a messenger—a transmitter; the real decision is in those who choose him—who chose him because they knew what he would do.

One can see the logic of an electoral college that functions as a sort of independent assembly to choose an executive, but the problem is that it long ago, with the development of the notion of the Faithless Elector, became little more than a mindless formality.

That five of the SC justices don't share his bigotry and bizarre narrow version of the Constitution.

Want to see people bent out of shape, you should go to one of the hype-social conservative Catholic forums on the web. Holy smokes, you've got people telling how God smucked down a tree in their neighborhood because He's so pissed off, and predicting that several states will secede. Someone on one forum even started blaming Neopagans (that one I confess I can't quite figure out).

The constitution doesn't mention a helluva lot of things, which is why the Founding Fathers created the Supreme Court as a means of assuring that the Constitution could remain a living document.

The Christian Identity movement has produced its share of terrorists.

Scalia just wants to be keep getting free dinners. He's largely irrelevant on any civil rights matter that reaches SCOTUS and he knows it.

Taubira doesn’t actually have the power to offer asylum herself, however. She said in the interview that such a decision would be up to the French president, prime minister and foreign minister. And Taubira just last week threatened to quit her job unless French President François Hollande implemented her juvenile justice reforms.

So, basically, "not going to happen".