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Joined 3 years ago
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Cake day: June 14th, 2023

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  • People keep mixing up empathy and sympathy and it’s one of my biggest pet peeves.

    Empathy is the ability to take the perspective of another person and understand their emotional state. To put yourself into their shoes.

    Sympathy is a feeling of compassion you have when you see someone else’s suffering.

    Empathy can be part of sympathy but it can also have nothing to do with sympathy. Scammers, for example, use empathy to manipulate their victims by predicting how they will respond, based on their emotional state. Empathy is a skill with no moral content. How you use empathy determines whether it’s a good or bad act.





  • A soldering iron isn’t going to get the job done for high density BGA packages. Example chip:

    All those dots are balls of solder. The chip needs to be placed on the board in exactly the right position and orientation, and then the whole thing placed in a reflow oven so that the solder balls can melt and flow appropriately without bridging any connections.

    Doing this at home without the right tools is essentially impossible. With the right tools, it’s merely quite difficult. Reflow soldering takes experience and carries the risk of damaging other components on the board which may not survive the temperatures in the reflow oven, so need to be removed first. Plus the reflowing procedure itself is guided by a temperature profile which would have been developed through experience in the factory with specific adjustments for the thermal characteristics of this board. Get the profile wrong and you may break other connections when the solder fails to flow, or have other chips on the board come loose.





  • Seriously, thank you. Those who are puzzled why everyday middle class Americans aren’t rushing to join an anarchist revolution ought to look at how the resistance is has been going in Iran this year, even before the US attacked.

    Middle class Americans may struggle to afford the things they had a few decades ago, but they’re still a long way from willing to risk sniper fire in the day and bombings at night.

    A good friend of mine is Palestinian and he spent time in Syria during the war. He told me what it was like to have bombs going off near his house. To have pieces of shrapnel fly past his face and embed themselves into the wall. He lives here in Canada now. He wants nothing to do with fighting in wars. He just wants to make a life for himself and his family.