Hypx

12 ms·

61.
by Hypx 6y ago
I'm guessing that's Cruise Automation. They talked about driverless cars in specific neighborhoods, but I haven't anything formally happening on that front. So they're either still using drivers or it's geofenced.
62.
by Hypx 6y ago
If you mean a car without a driver and outside of a geofenced area, you definitely have not seen one before.
63.
by Hypx 6y ago
We sorta have that already in the form of virtual memory. The next step might be SCM (Storage Class Memory) where we use very fast NVM in lieu of SSDs or HDDs. Higher latency RAM would just be another tier in the memory hierarchy if it catc
64.
by Hypx 6y ago
Unless you're thinking of a hybrid supercapacitor, you're still going to need a chemical reaction first.
65.
by Hypx 6y ago
That graph seems to miss some of Panasonic's cells back in 2010. We definitely saw 3100mah 18650 cells 11 years ago.
66.
by Hypx 6y ago
Fuel cell cars are starting use supercapacitors like this.
67.
by Hypx 6y ago
You're stuck in the past. We're seeing an exponential growth in hydrogen stations.
68.
by Hypx 6y ago
https://www.slashgear.com/navistar-and-gm-reveal-hydrogen-tr... Some of you guys are seriously stuck in the 2010s. Hydrogen is coming a big way and the old talking points are outdated.
69.
by Hypx 6y ago
https://www.renewableenergymagazine.com/hydrogen/protium-sec... You're probably out of date with your info. Hydrogen based aircraft are happening now.
70.
by Hypx 6y ago
The problem is that we're hitting the limits of what's feasible with current technology. Without a revolution in material science, we're likely stuck with incremental improvements in batteries. Fuel cells and hydrogen storage
71.
by Hypx 6y ago
Looking backwards perhaps. Looking forward and it's the opposite. Batteries are stagnating whereas hydrogen storage is accelerating very rapidly.
72.
by Hypx 6y ago
Fuel cells will allow for the same level of reliability without the weight.
73.
by Hypx 6y ago
It's pretty obvious that the future of aviation is either hydrogen or some kind of synfuel. I'm amazed that people are still even thinking of batteries here. It's like people are still trying to push floppy disc drives or som
74.
by Hypx 6y ago
The idea of the fuel cell car tends to loom large in such conversations. It solves all problems in one package, without having to resort to problematic ideas like battery swapping.
75.
by Hypx 6y ago
Considering that we run thousands of hydrogen powered vehicles every day, this is increasingly a viewpoint that is out of touch. If anything, we know that it will work without much fuss. Most of the issues you describe no longer exist any
76.
by Hypx 6y ago
Neither one's really a pipe dream anymore. Solar+wind+hydrogen is at the point where it can replace all fossil fuels. This doesn't mean you can't have nuclear, but it's no longer necessarily.
77.
by Hypx 6y ago
Well that's the thing: fuel cells are batteries, just that you use water as your main resource instead of heavy metals. A major advantage since water costs nearly nothing and heavy metals cost a lot. You sometimes hear people make th
78.
by Hypx 6y ago
If that's all you've heard, it's likely that you are coming from a position of ignorance regarding events in the hydrogen world. There's hundreds of billions of dollars of investment right now, and even Toyota is arguabl
79.
by Hypx 6y ago
I agree it's not conventional wisdom yet, but given the way the evidence is piling up I'd say it's only a matter of time. Serious conversations about energy are nearly totally dominated by hydrogen and related subjects. There
80.
by Hypx 6y ago
It's possible since we are likely in "Big Short" territory. Timing is the challenge though.
81.
by Hypx 6y ago
Batteries are being disrupted by hydrogen though. It's unlikely we'll see this all-electric world since it is basically obsolete given the rapid pace of hydrogen advancement.
82.
by Hypx 6y ago
Tesla is already losing to the competition. See Europe where it is no longer the top selling EV company. This is probably the biggest difference between Tesla and Amazon. Namely, that Tesla isn't able create any kind of network effect
83.
by Hypx 6y ago
The same is true of batteries. You don't get more energy than you put into it. Fuel cells are just another form of batteries, but with a far higher energy density and much lower material costs. At best, you can claim there is one more
84.
by Hypx 6y ago
Actually yes. The EV industry doesn't want hydrogen to succeed, since it is a threat to their business.
85.
by Hypx 6y ago
That's a coincidence.
86.
by Hypx 6y ago
This being explored in the US too: https://www.energy.gov/sites/prod/files/2019/03/f60/fcto-sat... I suspect that utility companies in the US are only a few steps behind European utility compan
87.
by Hypx 6y ago
The other way is to electrolyze water and store hydrogen in underground salt caverns.
88.
by Hypx 6y ago
Most of that stuff is written by people with a financial motivation and are likely biased. You can’t take them too seriously. Toyota, Hyundai, Honda are all investing and expanding investment. That’s for passenger cars specifically. Once yo
89.
by Hypx 6y ago
Except that electrolyzers have plunged in cost in way that's catching many people off guard. And 2030 is just 9 years from now. Even if what you say is true, disruption is still within a decade's time. If you wait until that event
90.
by Hypx 6y ago
Which is why the disruptive risk is so high here. There’s already enough fuel cell cars out there that we know pressurized hydrogen tanks work safely. That so many people ignore or dismiss this fact is potentially leading many companies in

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