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Cake day: July 1st, 2023

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  • You seem to be misunderstanding friend.

    I’m all for building as much wind, hydro, and solar power as possible. It is the cheapest option.

    I’m not arguing against that.

    People here seem to think that money spent on nuclear is money NOT spent on Wind/Solar/Hydro/Storage/etc as if there’s a fixed budget for all energy transition projects. That’s not the situation.

    Insurance and financial institutions are losing big money on climate change disasters, and they are getting data from their actuaries and climate scientist, saying it’s going to get massively worse. There is rapidly growing interest from “big money” private sector investors, In any technology that might solve the climate crisis.

    There’s more money investors wanting invest in wind, solar, or hydroelectric projects, than there are projects to invest it. The limiting factor isn’t money.

    Believe me, no one would be happier than me to be proven wrong that we can build enough wind, solar, and hydroelectric to get off a fossil fuels by 2050.

    But if you extrapolate the current data and the current trend lines, they don’t come anywhere close.

    If we also invest in nuclear, we come closer.



  • From an investor perspective, solar farm projects are a slam dunk once they reach the point of being ready to purchase panels.

    There are a lot of things to line up to build a grid-scale solar farm before you get to that point. You need to acquire (the rights to) the land, get permits to connect to the grid, which usually includes construction of the new transmission line to the grid. You need to line up panels from a manufacturer (who in turn has supply chains to manage), and labor to install it. And 100 other things. It typically takes a few years of planning, but get all that in order and it’s a small percentage of the total expense of the project.

    At the point you need to do the larger capital raise needed to buy the panels and hire the labour it’s a slam dunk. The project can be completed typically within 12-24 months so there’s a quick process to get to generating revenue for investors, and because solar has gotten so cheap it doesn’t take long to see positive ROI. It’s not like electricity demand is going away either. It’s a very safe bet, once all the pieces are lined up, and not difficult to raise funds once you get to the point of needing the big money.

    People on Lemmy/Reddit have this mental model that there’s a fixed budget for investment in the energy transition. If that was the case, then yes it would make sense to go all in on the cheapest technology option.

    But that’s how it works. Energy projects are competing with the global market for investment capital with non-energy related investments and there’s no shortage of wealth wanting to throw money at a solar project because they’re low risk/high ROI.

    Nuclear projects are a different story, long timelines from construction to revenue generation and high upfront capital costs make them unfavourable investments, they generally need government support to derisk the investment before investors jump on board. Which the governments are reluctant to do because they lack a mandate to do so from the populace. In part because of this mindset that nuclear investment impedes solar or wind investments.


  • Solar has been growing exponentially for the past decade or so, wind has not. Wind has run into supply chain limitations on rare earth metals such as neodymium and isn’t growing exponentially anymore.

    It’s doubtful that solar will continue growing exponentially for the next 20 years but even if it does, that only gets us to the point of enough capacity to displace the ~17.9 PWh of electricity generated by fossil fuels in 2023.

    To get off of fossil fuels we need to change everything else that’s burning fossil fuels too. That means every vehicle replaced with an EV, every gas furnace replaced with a heat pump. As we do that it’s going to 2-3x electricity demand.

    The world burned 140 PWh worth of fossil fuels in 2023, and we only generated 1.6 PWh from solar power. That 1.6 is up from 1.3 PWh in 2022. A lot of that 140 PWh was wasted heat energy so we don’t need to get that high, but we still need to generate something in the area of 60-90 PWh of electricity annually to eliminate fossil fuels.

    ~4/5th of our energy still comes from fossil fuel, we have a long f’ing way to go. Even with the current exponential growth of solar we don’t get off of fossil fuels within 20 years, and that’s assuming global energy demand doesn’t increase.

    Don’t take my word for it. Extrapolate the data yourself. Your rose coloured glasses aren’t helping.




  • I can’t see routing traffic to some kind of local presence and then routing back to the target machine to route out through the tunnel adapter without a successful compromise of at least one other vulnerability.

    That’s not to say there’s nothing you could do… I could see some kind of social engineering attack maybe… leaked traffic redirects to a local web server that presents a fake authentication screen that phishes credentials , or something like that. I could only see that working in a very targeted situation… would have to be something more than just a some rouge public wi-fi. They’d have to have some prior knowledge of the private network the target was connecting to.



  • Not all VPN traffic. Only traffic that would be routable without a VPN.

    This works by tricking the computer into routing traffic to the attacker’s gateway instead of the VPN’s gateway. It doesn’t give the attacker access to the VPN gateway.

    So traffic intended for a private network that is only accessible via VPN (like if you were connecting to a corporate network for example) wouldn’t be compromised. You simply wouldn’t be able to connect through the attacker’s gateway to the private network, and there wouldn’t be traffic to intercept.

    This attack doesn’t break TLS encryption either. Anything you access over https (which is the vast majority of the internet these days) would still be just as encrypted as if you weren’t using a VPN.

    For most people, in most scenarios, this amount to a small invasion of privacy. Our hypothetical malicious coffee shop could tell the ip addresses of websites you’re visiting, but probably not what you’re doing on those websites, unless it was an insecure website to begin with. Which is the case with or with VPN.

    For some people or some situations that is a MASSIVE concern. People who use VPNs to hide what they’re doing from state level actors come to mind.

    But for the average person who’s just using a VPN because they’re privacy conscious, or because they’re location spoofing. This is not going to represent a significant risk.


  • So for this attack to work, the attacker needs to be able to run a malicious DHCP server on the target machine’s network.

    Meaning they need to have already compromised your local network either physically in person or by compromising a device on that network. If you’ve gotten that far you can already do a lot of damage without this attack.

    For the average person this is yet another non-issue. But if you regularly use a VPN over untrusted networks like a hotel or coffee shop wifi then, in theory, an attacker could get your traffic to route outside the VPN tunnel.



  • The economics of Bitcoin mining are a bit weird in that it impossible to make it more energy efficient.

    The system auto adjusts the computational complexity of mining bitcoin so that it always costs a little less than one bitcoin to mine a bitcoin, and at scale the only variable expense is electricity so as the price of bitcoin goes up, so does the amount of money that must be spent on electricity.

    Current 6.25 Bitcoin are mined every 10 minutes. So globally about $2 million must be spent on electricity every hour.

    In a little over 2 months the block reward cuts in half to only 3.125 bitcoin every 10 minutes. That will have the side effect of reducing the money spent on electricity for mining bitcoin so long as the price of bitcoin remains the same.



  • I’m not intending to defend Musk or Tesla here, but this study is literally just insurance incidents by brand and makes no distinction between Teslas on autopilot and under human control.

    Teslas tend to attract a certain kind of driver that likes their performance characteristics who are not typically known for being the safest drivers.

    There’s no doubt that a lot of Tesla drivers abuse the autopilot capabilities, and the Elon Musk hype machine is at least partially to blame for that, probably more.

    But this isn’t evidence one way or the other about the safety of Tesla’s FSD.


  • dgmib@lemmy.worldtoMemes@lemmy.mlF#€k $pez
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    1 year ago

    Total monthly posts exploded after Spez enshitified Reddit, and is still growing steadily month over month.

    That suggests that the current decline in monthly active users is primarily because lurkers who only came to lemmy after initially hearing about it on Reddit, went back to lurking Reddit.

    The number of users that are contributors is still growing, and that’s what’s important.