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Mordhaus (Member Profile)

Tesla Model S driver sleeping at the wheel on Autopilot

RedSky says...

Woah, woah, you're way overstating it. The tech is nowhere near ready for full hands-off driving in non-ideal driving scenarios. For basic navigation Google relies on maps and GPS, but the crux of autonomous navigation is machine learning algorithms. Through many hours of data logged driving, the algorithm will associate more and more accurately certain sensor inputs to certain hazards via equation selection and coefficients. The assumption is that at some point the algorithm would be able to accurately and reliably identify and react to pedestrians, pot holes, construction areas, temporary traffic lights police stops among an almost endless litany of possible hazards.

They're nowhere near there though and there's simply no guarantee that it will ever be sufficiently reliable to be truly hands-off. As mentioned, the algorithm is just an equation with certain coefficients. Our brains don't work that way when we drive. An algorithm may never have the necessary complexity or flexibility to capture the possibility of novel and unexpected events in all driving scenarios. The numbers Google quotes on reliability from its test driving are on well mapped, simple to navigate roads like highways with few of these types of challenges but real life is not like that. In practice, the algorithm may be safer than humans for something like 99% of scenarios (which I agree could in itself make driving safer) but those exceptional 1% of scenarios that our brains are uniquely able to process will still require us to be ready to take over.

As for Tesla, all it has is basically auto-cruise, auto-steer and lane changing on request. The first two is just the car keeping in lane based on lane marker input from sensors, and slowing down & speeding up based on the car follow length you give it. The most advanced part of it is the changing lanes if you indicate it to, which will effectively avoid other cars and merge. It doesn't navigate, it's basically just for highways, and even on those it won't make your exit for you (and apparently will sometimes dive into exits you didn't want based on lane marker confusion from what I've read). So basically this is either staged or this guy is an idiot.

ChaosEngine said:

*snip*

Russian fighter jet passing under a MQ-9 Reaper drone

ViHart: Shepard Tones

Magician Shin Lim Fools Penn and Teller

lucky760 says...

I've watched much of the clip at 1/4 speed and learned a little. SPOILER ALERT.

The marker vanishes are now definitely obvious. The first time he slips it into his vest. The second time he flips it to the back of his fingers then drops his hand behind him and discards it.





So, the vest definitely does come into play a lot. He also pushed a card into the lower opening in his vest at about 3:45 while misdirecting by spinning a card in his other hand.



That's all good and fine, but other things are not simple sleight of hand.

At 5:10 with his back turned he shows us the signed card with the hand behind his back. Then in full view he simply turns the card against his back. Then his other hand raises up from the other side of his body to reveal the "same" signed card. (The one that was in view, btw, he tucks up into his vest at this point, keeping in hand the blank that was paired with it.) The only possible explanation for the same card being in two places at once is there must be multiple copies of each signed card, which means he has stooges who sign the exact same way every time or he has a technological advantage like others have mentioned (tiny scanner and printer).

The other thing that confounds is how he has a signed card in one hand and a stack of cards in the other. Then in full view the tall stack shrinks down to (approximately) one card and the single card grows into a stack instantaneously. I guess there must be some kind of technological solution to this as well, but I don't know how a functional stack of cards (and not just the appears of a stack of cards) could collapse and appear... unless they aren't functional and it's a trick deck that can easily expand or shrink to look like a deck or single card.

At 6:00 when he just shakes the bag and the signed card inside changes to the other signed card, I think he just flips the bag around with his shake motion and that the single card is printed on the front with one signature card and the other signature card on the back.

That's the only thing that makes sense... which again requires a special scanner and printer setup... I guess.


Magician Shin Lim Fools Penn and Teller

Magician Shin Lim Fools Penn and Teller

Magician Shin Lim Fools Penn and Teller

kceaton1 says...

There were a lot of different tricks in there. A part of me really wonders if the mat on the table is a "printer/scanner" and that "marker" is extremely important. There may be a time-released chemical that helps all of this go down (meanwhile he may actually have a small printer on his body somewhere). When the smoke appears that is when the "card" is doing it's chemical thing (as you could smother one card with this chemical making it fully black, but then the printer could change the chemical pattern again as it is scanned and therefore reset the card with the other signature...).

The truth is, I have no idea how it was done, but I think what he is wearing (and possibly what is underneath--not to mention the pockets that are very hard to determine their location or size), possible chemical reactions used in a few different ways, a slim printer, and a slim scanner. Plus all of the sleight of hand tricks you did or did not catch...

If true, he used some fairly complicated technological prowess, besides his agility to get this done. But, for ages untold the creations made and used by magicians are just as important sometimes as the act.

This would also be THE perfect trick to give Penn & Teller the slip, as they may have never ran across anything like this (I've run into tech that could easily do lots of this--scanner through things, etc; it just depends on what is in that pen exactly...think of it kind of like invisible ink, but it need not stay that way and it more than likely can be made to "dissolve" as some sort of inert gas).

Everything was done here flawlessly, even the music feed into the act making it harder to catch.

Phew, that is long enough and I may only have 50% or so right on this one.

Is Climate Change Just A Lot Of Hot Air?

bcglorf says...

@charliem,

Energy is absolutely a better measure and marker of climate change than temperature. I started there since the video did. In reality though, everything in climate change is solely about the energy balance at the Top Of Atmosphere. More TOA energy in and temps go up in the long term, less and temps go down. It's the very foundation of climate change.

The climate models that your links look to for projections of things like methane thresholds are based on modelled temperature predictions. The IPCC notes the following on the state of the art in climate models:
For instance, maintaining the global mean top of the atmosphere (TOA) energy balance in a simulation of pre-industrial climate is essential to prevent the climate system from drifting to an unrealistic state. The Models used in this report almost universally contain adjustments to parameters in their treatment of clouds to fulfil this important constraint of the climate system (Watanabe et al., 2010; Donner et al., 2011; Gent et al., 2011; Golaz et al., 2011; Martin et al., 2011; Hazeleger et al., 2012; Mauritsen et al., 2012; Hourdin et al., 2013).
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Chapter09_FINAL.pdf
It's in Box 9.1

So, climate models currently FAIL to predict TOA energy accurately and hand tuning is required for modelling temperatures into the known past in order to avoid unrealistic states because the TOA energy is wrong. Maybe we aught not panic just yet on extrapolations from that base. I'm not calling climate models garbage, rather they are a learning tool for climate processes and one lesson is that we have a long ways to go in understanding the central component of TOA energy balance. If you go to google scholar and lookup the references from the IPCC assertions you'll find that the modellers acknowledge that most models still either leak or create energy from nothing. As in, even conservation of energy is imperfect in them still.

Your cursory glance approach is a problem, the devil is in the details.

Looking at energy further from NASA's numbers also tells us that the net contribution to TOA energy trapping from the CO2 we've added in the last 100 years is about 3W/m-2 globally. The global TOA energy imbalance is about 0.5W/M-2. In other words, if we could magically remove all the CO2 we've added to the atmosphere, we'd suddenly have a global energy imbalance at TOA of -2.5W/M-2. That brings two things to mind.
1.The enormous energy imbalance you want to call a catastrophe is 0.5W/M-2, but merely rolling back to 1900 CO2 concentrations today would yield a negative energy imbalance 5 times as large.
2.Of the 3W/M-2 that our actions have pushed on the planet, natural factors(warming and other unknowns) have already balance out 2.5W/M-2 of the imbalance, today.

You also might wanna check how much energy is in the oceans on the whole. If you take the increase in energy as a percentage of OCH instead of straight joules you'll find the trend is << than 1% annually.

Adorable Daddy / Daughter Standoff

Retroboy says...

He might THINK he's won...

...until the next day he wakes up from his nap on the couch, looks in the mirror and sees the Magic Marker mascara and crimson toenail polish lipstick.

Half Life in One Map

Shayde says...

Not as much as you might think. Half-life levels have markers at the exit points that match up with markers on the map the exit point leads to so the transition from one map to another (other than the Loading freeze) is unnoticeable. It's straightforward to just place the maps based on those markers using code.

RFlagg said:

Still the amount of work to overlap the maps at the proper spots and seal things off is fairly impressive. Undoubtedly took a great deal of time.

TED: Chaos, Order, Magic and Crossword Puzzles

moonsammy says...

I agree, there's clearly a missing piece. She didn't pick the colors by the order they were presented to her (in which case silver would have been 2nd), and he made no mention of other cues which would have lead to her selecting them in that order. Maybe it was simply top to bottom, other than the horse being first due to cobalt being shoved in her face. He does have a big honkin' earpiece in though, which would have made it easy for someone to feed him her marker selections. Occams razor: is it more likely that he was being fed her selections and telling her which animals to color accordingly, or that some subtle unknown cue caused her to pick the marker order she did? The subtle imagery clues he referenced (Katy's amber owl mug for example) appear to me to be total red herrings, as he told her the animal after she selected the color.

Teacher Finds Cat Drawn On His Whiteboard

FlowersInHisHair says...

Hours? Just scribble over the permanent ink with a regular whiteboard marker and it comes off.

AeroMechanical said:

Within a couple weeks, I expect the kids who made this video to be tracked down and lynched by a mob of rampaging janitors from around the world driven mad by hours of scrubbing permanent ink off whiteboards.

The Cicret Bracelet-Concept/Scam/Want

AeroMechanical says...

What they're showing certainly is ridiculous, but I'd be pretty happy with a monochrome green projection. That said, in all likelihood some sort of flexible OLED patch or wrist band would probably be practical long before this is. Probably even some sort of fluorescing tattoo.

I do like the possibilities of short throw pico projectors combined with machine vision for user interfaces though. You could take Newtboy's dual projector concept and have something the size of a couple marker pens that unrolls like a scroll, with the screen in the middle.

When it comes down to it, though, what I really want right now is something about the size of a smartphone, with minimized thickness an e-ink display and a limited feature set (phone, text, e-mail, and basic web surfing), the whole design optimized for battery life and performing just those four functions adequately. An easily replaceable battery would be nice too.

HugeJerk said:

You would need to be in a very dark environment for it to look anything like what they show. You can't project anything darker than the screen surface.

Brittany Maynard - Death with Dignity

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