Recent comments in /f/Futurology
alecs_stan t1_j8kf47e wrote
Reply to comment by LummoxJR in Renewables are on track to satiate the world's appetite for electricity by ForHidingSquirrels
You are very resolute with words like "never" and "ever" missing the fact that we don't even need to replace non-renewables completely. If we reach a market share of let's say 50% we increase our window of action, allowing us more time to create better tech and find better solutions.
goddamnmike t1_j8keove wrote
Reply to comment by z3njunki3 in How ChatGPT Could Revolutionize Job Automation [Opinion] by ryan_s007
"We'll take good care of <decedent>, sorry for you loss."
alecs_stan t1_j8keehp wrote
Reply to comment by jjanelle99 in Renewables are on track to satiate the world's appetite for electricity by ForHidingSquirrels
You do not know enough to form a valid opinion. Learn more.
CopeH1984 t1_j8kebx9 wrote
What they mean to say is that they'll steal AI tech from outside sources.
Super_leo2000 t1_j8kdxtz wrote
Reply to comment by Albert14Pounds in Scientists Successfully Split Seawater To Produce Green Hydrogen by __The__Anomaly__
Have you heard of the Dead Sea? It is dead because of too high salinity.
momolamomo t1_j8kdd1c wrote
Reply to comment by Lazaruzo in Physicists Say Aliens May Be Using Black Holes as Quantum Computers : ScienceAlert by Gari_305
Theorising about alien processing systems removes human/earth bias and CAN/MAY allow us to approach how we process data and computations.
Look at how the quantum computer can about. We started by ourselves what if the entire internet could be stored in a grain of salt but we’ve been busy mucking around with silicone and binary states.
Everything that processes today is based on the premise of Morse code. We just advanced the shit out of it
2soonjr65 t1_j8kd316 wrote
Reply to comment by 3SquirrelsinaCoat in What if AI companies are using our prompts to create low-resolution models of our entire identities? by roiseeker
Excellent summary, ChatGPT derived?! J/k 😁
z3njunki3 t1_j8kd2q5 wrote
Reply to comment by goddamnmike in How ChatGPT Could Revolutionize Job Automation [Opinion] by ryan_s007
For "he was a really nice guy" press 5
victor4700 t1_j8kctpz wrote
Reply to comment by kittykatkin in Physicists Say Aliens May Be Using Black Holes as Quantum Computers : ScienceAlert by Gari_305
Doctors hate them!
momolamomo t1_j8kcq8r wrote
Reply to Physicists Say Aliens May Be Using Black Holes as Quantum Computers : ScienceAlert by Gari_305
It’s a massively outlandish idea. However, can we draw ideas from this?
From what I gather, scientists are tinkering with the validity of the idea that an object in space that was not manufactured can be used to compute.
Can we do this with tree roots? Can we apply this concept within a reachable grasp?
The concept in its raw unadulterated form sounds like something from startrek.
But let’s water it down, can we take advantage of this concept here, on earth?
It’s an interesting concept,
JUYED-AWK-YACC t1_j8kcnro wrote
Reply to comment by Hvarfa-Bragi in Scientists Successfully Split Seawater To Produce Green Hydrogen by __The__Anomaly__
Increasing salinity in coastal areas is already a major problem for local governments. The associated damage is not hypothetical. When these plants are built, they won't be pie-in-the-sky technology but with whatever fits a tight budget. Don't fall in love with a single technical solution.
Merlin_Wycoff t1_j8kccyo wrote
Reply to 7 international companies have teamed with the EU to form the International Hyperloop Association, the industry's first trade body. by lughnasadh
Hyperloop is a literal pipe dream, just invest in rail for gods sake
theNorrah t1_j8kc742 wrote
Reply to comment by zushiba in Physicists Say Aliens May Be Using Black Holes as Quantum Computers : ScienceAlert by Gari_305
That’s inefficient. Just go to a plant where x grows naturally, like beer bootle trees etc.
Viper_63 t1_j8kb1s2 wrote
Reply to comment by dlamblin in Scientists Successfully Split Seawater To Produce Green Hydrogen by __The__Anomaly__
The "nearly 100%" is in comparison to regular electrolysis.
From the abstract of the paper:
>[...]and similar performance to a typical PEM electrolyser operating in high-purity water.
The BS claim in the article is being used to push this research on social media. I don't know how many times I've come across this "news" in the last few weeks.
Viper_63 t1_j8kashq wrote
Reply to comment by rich_and_beautiful in Scientists Successfully Split Seawater To Produce Green Hydrogen by __The__Anomaly__
It's misleading. The "100%" being pushed here are in regards to regular electrolysis. They have basically come up with a less efficient way to split water.
phunkydroid t1_j8kahev wrote
Headline makes it sound like splitting seawater was the hard part that we couldn't do before.
Viper_63 t1_j8kaafv wrote
Claims being made in the article are misleading and the research itself - which is actively being pushed on mutliple social media channels in a way that borders on the absurd - is massively overstated.
>“We have split natural seawater into oxygen and hydrogen with nearly 100 per cent efficiency
No, that's a BS claim. The process is not "nearly 100%" efficient. What they have actually done is that they achieved nearly the same efficiency as with conventional electrolysis using standard catalysts and pure water.
As per the abstract from the actual paper: >[...]and similar performance to a typical PEM electrolyser operating in high-purity water.
This whole thing - i.e. "we need to solve seawater electrolysis to make the hydrogen economy happen" is absolute BS, for the simple reason that the problem doesn't actually exist, because conventional electrolysis coupled with reverse osmosis (SWRO) is basically as efficient as it gets:
>Our analysis reveals there are limited economic and environmental incentives of pursuing R&D on today's nascent direct seawater electrolysis technology. As commercial water electrolysis requires a significant amount of energy compared to SWRO, the capital and operating costs of SWRO are found to be negligible. This leads to an insignificant increase in levelized cost of H2 (<0.1 $ per kg H2) and CO2 emissions (<0.1%) from a SWRO-PEM coupled process.
>https://pubs.rsc.org/en/content/articlelanding/2021/ee/d1ee00870f
"Direct electrolysis" results in insignificant gains. Purifying seawater is not what makes the process inefficient and not having to purify the water doesn't make it markedly more efficient let alone cost saving.
What's "preventing the hydrogen economy from happening" is not that we have to deal with seawater - it's that electrolysis itself takes massive amounts of energy and isn't efficient. You don't improve the underlying economic obstacles by slashing less then 10 cents from the price of a kg of hydrogen.
The "obstalce" is not seawater, it's the inefficiency of electrolysis. And the people pushing this research just told you that somebody has come with a way that's less efficient than regular electrolysis.
wwiinndyy t1_j8k9wxk wrote
Reply to comment by Bloorajah in Physicists Say Aliens May Be Using Black Holes as Quantum Computers : ScienceAlert by Gari_305
They just figure we'll nuke ourselves back to the stone age before we get around to blackhole supercomputers
PedroEglasias t1_j8k9lqn wrote
Reply to comment by Lazaruzo in Physicists Say Aliens May Be Using Black Holes as Quantum Computers : ScienceAlert by Gari_305
Lots of hypotheses involve unproven data points
wwiinndyy t1_j8k9le7 wrote
Reply to comment by Jaded_Prompt_15 in Physicists Say Aliens May Be Using Black Holes as Quantum Computers : ScienceAlert by Gari_305
This is dumb. Everyone knows that we aren't sure if alien life exists, and no part of the title is claiming to have discovered them. You guys should really look at context
jnemesh t1_j8k8rvf wrote
LOL, sure. And if you believe that, I have a bridge to sell you in Brooklyn! How, exactly, are they going to have cutting edge AI without any chips to run it on?
jazzageguy t1_j8k7532 wrote
Reply to comment by SentientBread420 in The steam engine changed the world. Artificial intelligence could destroy it. - The Boston Globe by GlobeOpinion
OK, tech has had immediate bad effects in the sense of, cars replaced horses and what did all the carriage drivers do, or farm machinery made 80% of farmers obsolete, etc. But it turns out they find something else, usually safer, less tedious, and better compensated to do in short order. Partly because the economy grows as a result of the new tech. I didn't mean to imply that there was never displacement or inconvenience. But net net, as they say, the effects of tech are OVERWHELMINGLY positive. We live longer, healthier, freer, and richer with each advance in tech, and it's silly to pretend otherwise. I'd never be so foolish as to say potential negative effects should be ignored; they should be thought about and planned for and minimized, obv. But something new and magical shouldn't be thought of as "the thing that will take our jobs and immiserate us and out-evolve us and compete with us and take over" as one commenter or maybe the op pretty much said.
thisischemistry t1_j8k6a2z wrote
Reply to comment by Wilusan_00 in Scientists Successfully Split Seawater To Produce Green Hydrogen by __The__Anomaly__
> Even today there is much more salt/minerals in the oceans than water can hold.
No, not at all. Where have you heard something like this? The salts are dissolved in the water, they aren't supersaturated at all. Yes, they can precipitate out if conditions change but you can pretty much take a container of seawater and let it sit for a long time without any of it precipitating out.
thisischemistry t1_j8k5twb wrote
Reply to comment by Cheapskate-DM in Scientists Successfully Split Seawater To Produce Green Hydrogen by __The__Anomaly__
It's also worth noting that even with a very efficient process it takes a lot of energy to split water into hydrogen and oxygen. In addition, the storage/delivery of the hydrogen takes a lot of equipment and energy, the hydrogen itself tends to escape easily and corrode equipment, and converting the hydrogen back into energy does not happen with 100% efficiency.
Hydrogen has a few key uses but it is really not a good replacement for most uses of fossil fuels because of these issues.
[deleted] t1_j8kgb4l wrote
Reply to Physicists Say Aliens May Be Using Black Holes as Quantum Computers : ScienceAlert by Gari_305
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