spidermanchild

u/spidermanchild@sh.itjust.works
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What do you mean by "building up lower back muscles"? Understanding your goals would be helpful. Honestly deadlifts are a one stop shop and by far the best IMO, but I also like one leg stuff because it requires different stabilization (e.g. lunges, step ups). Planks help balance out the core too. The overwhelming majority of people would benefit from regular deadlifts, and other than specific sport needs or mobility issues, are enough.

A lot of the most dangerous roads are in... surprise surprise... lower income areas that tend to have a greater proportion of minorities. And traffic death disproportionally affects non rich/white demographics. Despite what people love to parrot, speed enforcement (yes even cameras) increases safety and reduce deaths. Cameras work, and are much cheaper than actual infrastructure investment. So it's no surprise this admin wants to do something vaguely muh freedom that proportionally harms poor/brown people more. Bonus points if your average chode would assume cameras are DEI, which seems likely. We already have something worse - flock.

Right. One issue is that the US's glidepath towards low GWP includes significant HFO usage (which is a PFAS) rather than speedrunning natural refrigerants which are the only sustainable long term solution. So we'll likely have more warming, but less PFAS as a result of this, along with higher costs and more uncertainty. The focus needs to be on natural refrigerants though long term.

If a simple majority is required to rule, then logically two parties will form somewhere near 50% support. The fact that other parties have existed in the past is an exception to the logical conclusion of two party rule inherent in the design itself.

You're a bit less cynical than I am, so I applaud you for that. I'm not sensing mailce per se, but I've noticed the same pro-hydrogen content for years from this particular user and it's getting pretty wild considering the massive, observable growth in the EV sector and the proven viability. There will always be folks tilting at windmills, however. For me, I'm going to continue promoting walkable/bikable/transit focused communities with EVs as a backstop.

Hydrogen cars are dead and EVs won already. This pro hydrogen position has only ever benefited the fossil industry, and is laguhable considering the state of the industry in 2026 (gestures broadly at China). Their arguments are simply disingenuous (e.g. obviously efficiency doesn't matter because bikes are more efficient than cars, so let's all agree to use inefficient cars). Hydrogen will be a thing for some industries, but not cars.

on Fight me · c/science_memes · 4 pts · 320d

Heat pumps easily exceed 2.5 COP. More like 4 in the UK climate. And gas isn't 100% efficient either. But yeah it's a wash or can be more expensive to heat with heat pumps where electricity is really expensive. It helps if we all conveniently ignore externalities like pollution and carbon too.

What are you actually advocating for here? Not electrifying and waiting another few decades for hydrogen? You come off as excessively defensive of the practically nonexistent H2 industry and excessively critical of electrification, which is basically the Shell and Exxon position. We don't have time wait for anything, we need to use the tech we have now to reduce warming. Where do we get the hydrogen in your world? Is it blue or green? Blue is just fossil fuels with extra steps and green doesn't make sense until we have significant excess renewables and already electrified the easy stuff (buildings) and then it might still make sense only for industry/shipping and niche stuff. H2 itself has a GWP of 11 or so, and we will leak quite a bit. So again, what are you actually arguing for? I can't buy hydrogen, period. I can't buy a hydrogen vehicle, or a hydrogen furnace, or a hydrogen anything. What do you actually think we plebs should be doing here? I already want green steel as much as you do.

Also to compress it, chill it, transport it, and store it, while avoiding leaks and fires. You're absolutely right though, first comes renewables (and a shit ton of batteries), hopefully in parallel some green steel and chemical processes, then heavy transit and the harder edge cases to electrify, assuming electrification hasn't already solved those issues by then. Talking about regular folks buying fuel cell cars is not realistic.

on They Blew A Stop Sign · c/micromobility · 5 pts · 344d

Yep, it's commonly called the "Idaho Stop". Spending less time in intersections is safer for cyclists, and to me the biggest benefit is shutting down drivers that complain about bikes not stopping completely (even though most cars roll through anyway). If it's busy cyclists still need to stop and wait like normal.