Comments by "Joe Qi" (@i6power30) on "Two Bit da Vinci" channel.

  1. Whenever a new tech comes out, I'm sure it's more efficient, more smart etc, but the question is always about reliability and longevity...
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  2.  @steffen12  heat pumps are inherently more complex mechanisms than resistive or gas heating. It has compressor and pressurized refrigerant. More moving parts and potential for failure.
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  3. I love this. Such an easy concept of zip line that works so well and that big companies missed.
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  4. Mexico is far behind in China in tech innovation, far cry from "fall of China" . Even China might take advantage of cheap labor in Mexico and help China economy.
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  5. One problem is strong wind and power lines. The cable might swing and get tangled in power lines.
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  6. I concede heat pump dryer seems better. If AC can last over 15-20 years, so should heat pump dryer. However if your electricity is cheap then it makes little sense to spend more on heat pump. I pay only $0.028 or 2.8 cents per kwh and wash clothes only twice a week. That works out to $6 savings per year by switching to heat pump dryer. I'll never be able to recoup the added cost
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  7. I'd be even more concerned about habiltability of costal cities such as Sydney, Los Angeles, NYC, Shanghai, HK etc. Majority of mega cities in the world are costal, If they all submerge, it'll be a catastrophy we've never experienced.
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  8.  @steffen12  my point exactly. These new gadgetts don't save money for owners as they are expensive and prone to failure.
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  9. Ingenious! My bigest peeves with heat pump was the noise. This is must have for cold regions like Canada.
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  10. I wouldn't not have a gas furnace if you live in San Diego, but it's hard to get rid of natural gas heating in Canada. Heat pump will not be very efficient in the coldest time of winter, and will be loud vibrating.
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  11.  @DemonXplaid  in southern Ontario you get the new ultra low overnight rate of 2.8 cents Canadian per kwh. Mid tier is 12.8 cents and peak time is 28 cents between 4-9 pm .I do laundry after 11 pm to take advantage of ultra low rate and EV charging of course.
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  12.  @thecooljohn100  from the EV proponents. The less moving parts the better right?
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  13. Seems like a collosal waste of carbon emissions just because you want to travel across world fast.. Shouldn't he be designing electric airplanes instead?
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  14.  @chadw4969  Which car is that? How do you keep it from rusting?
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  15. This still undo all the electrification of transportation he did so far. Id like to see fight becomes so expensive that only absolutely necessary fights take place
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  16. How dare you criticize Japan,, a great ally of America! Let's find more bad news from China to talk about
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  17. Sandy manroe sounds like a paid spokesperson for Tesla
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  18. Natural gas is so abundant it would be foolish not to use it
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  19.  @fam5451  Yes, I'm saying the whole North American continent is very backward, people still prefer ICE cars, especially diesel, with a perception of toughness and power. The louder the car, the more power some people think they have. quite funny and sad at same time. Just google the most popular car related youtube channel. it's called diesel something. it's all about diesel trucks. people in this country / continent have fascination about vehicles bellowing black smokes and making loud sound.
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  20. It's the drilling on roof part I'm not comfortable with especially on a old house. I've installed a few panels on metal awnings, but I will never allow drilling on my roof. Also, I'm getting 2.8 cents Canadian overnight rate to charge my EV, it makes little financial sense to get solar panels where I live.
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  21. Still burns stinky diesel though. North Americans are stuck in fossil age as China is moving into electric age.
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  22. Governments sbould prioritize electrifying fleet vehicles before anything else. Buses, uber, taxis ,and especially those delivery vehicles constantly stopping then going again in residential streets. Stop and go city mileage all day long everyday is exactly where EVs shine the most, and can reduce the most amount of polution. Stop obsessing about highway travel and range. Solve the low hanging fruits of city pollution first.
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  23. That's why I decided not to go on solar. Government can change / cancel net-metering at a whim.
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  24. How do you fight monopoly of EVs - Tesla? Legacy autos refuse to innovate, and protectionism in America won't allow Chinese EVs in the country. the result is Tesla is the only game in town.
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  25. Another fail for greedy Americans. This kind of stuff will never happen in China
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  26. I'm surprised this vessel failed not because it's made in China. But I'm sure they can still come up with something to blame China
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  27. 3M sponsors you? One of the worst polluting companies in the world.
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  28. Very knowledgeable guy.
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  29. I don't get why road trip is such a big deal for so many people. I hate it. It's one of the most unhealthy activities and dangerous. I'd rather take train or bus if I have to leave town.
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  30. Really Dumb idea
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  31. Doesn't solve the pollution problem. It's inferior to renewalbles.
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  32. In Japan, people live in apartments, no one has charger in their garage
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  33.  @irri4662  Yes, the trouble is the trend seems that everyone is focusing on efficiency these days, and not realize they could be trading off durability and longevity. Throwing away your appliance / cars after just a few years, and getting another newer shinier model seems to be the trend these days.
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  34. There is also a question how quickly it can dry. My current resistive venting unit can finish drying in half hour. I live in a small house so I can hear the dryer noise, won't be able to sleep until it's done. I usually start it at 11 pm that's when my ultra low overnight rate of 2.8 cents / kwh starts. If I get a heat pump unit that takes more time, I'll have to start earlier when the electricity rate costs 12.8 cents / kwh. Is there really any savings then? There are many factors to consider not just absotely kwh efficiency, but money and time efficiency as well.
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  35.  @rickybobby7276  my point exactly. Now that everything is connected to software. They can simply obsolete your machine with the next software update after it reaches past warranty, or at least reduce efficiency to push you to buy a newer model
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  36.  @geeval3910  Industry trend is efficiency efficiency, nothing else. I'm not surprised the ease of maintenance by DIYers is not even on their consideration. Probably even discouraged so you can just buy new ones if they break sooner.
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  37. How is its cost compared to nuclear?
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  38. DeepSeek is just a peanut, China throws it away for free open source, just to spite the US. China already has much better AI maybe even AGI in secrecy. Alibaba just announced Qwen 2.5 outperforming DeepSeek. Americans is hopelessly behind.
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  39. I would say safety and health are the top reasons for electric / induction over gas, not efficiency or environment. If efficiency was your reason for not using gas stove, then don't eat any baked goods, as baking is the most wasteful form of cooking, as majority of heat is rediated to the environment, not focused into the food. So if you care about efficiency so much, just boil porridge with your induction stove every day instead of eating bread. Not to mention charcoal BBQ, wood fire pizza etc, So many nice food wastes heat energy, and does not concentrate 100% of heat energy into the food.
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  40. Wars on drugs have always ended in disaster.. Starting from the opium war since 1800s
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  41. My gas mower has lasted 30 years so far. With minimal maintenance. I doubt any electric mowers battery will last that long.
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  42. Why do inverters wear out anyway? It's usually the capacitors that go out by end of life. They should design inverters with replacable capacitors instead of having to replace the whole unit. All the wires an other components don't degrade, it's only capacitors, the cost of replacement is much lower than having to buy new inverters.
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  43. Heavy vehicles and large battery aren't a good combination. Very inefficient and long charging times
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  44. What bugs me about airplanes is the amount of fossil fuel it uses and harmful emissions it makes. People need to curb their demand for instant travel. For business meetings use teleconference.
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  45. Electrification alone is not enough to wean us off fossil fuel, especially in areas of heating due to low energy density of current battery tech. Probably more renewable bio-fuel is needed before we drastically increase battery density and charging rate.
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  46. It's not just about boiling water.. If you want to cook fried rice with a wok, you need real fire.
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  47.  @TwoBitDaVinci  does it ignite flame inside the wok when you toss ingredients and hot oil together? The flavor from the real burning flame is difficult to replicate. Maybe this is too advanced for 99% home cooking though
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  48. The white glossy finish is so gimicky it adds no functionality, just gives modern appearance with added cost that serves no purpose.
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  49.  @TwoBitDaVinci  I think we might end up two tiered system where you get free drone delivery on a nice day but have to pay for human delivery in a bad weather if you can't wait.
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  50.  @default_user_89  That's not a social problem we need to address seperately. Not just minumum wage workers, but highly paid knowledge and creative workers will eventually be replaced by AIs some day. Do we limit the capabilities of AIs just so humans can keep their jobs or let technology advance freely and see what benefits can bring? it's a philosophical debate beyond our current understanding. For example, displaced coders, laywers, accountants, radiologists by AI. Should they become carpenters, plumbers, personal care workers that cannot be replaced by machines? Should the latter mentioned positions be compensated more or at least equally as coders, laywers , accountants etc, that are traditionally considered require higher degrees? In a way, AI turns it upside down, anything that require brain suddenly can be replaced by AI. But things that require hands-on or personal skills still need human touch. Plumbers, electricians etc, may one day be compensated as much as radiologists or software engineers.
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