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Joined 4 months ago
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Cake day: June 2nd, 2024

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  • Teach this to your manager: At the beginning of a task, uncertainty is highest. Under no circumstances should you give an estimate in ‘man-hours’. Even days is too precise. The first estimate should be in months or years (of course depending on the size of the project). Then, as your insight into the project grows, you refine that to months, then weeks, later days. A vague estimate with a lower and a higher bound is way more useful to your manager than a ridiculously ‘precise’ but highly speculative number.

    This lesson was brought to you by either “Code Complete 2” or “Rapid Development” by Steve McConnel, and by my former manager who wanted projects estimated in minutes.






  • This is my googled understanding, take with a grain of salt:

    Batteries contain of lots of individual cells. If you short-circuit one cell, you generate lots of energy (from the short-circuit), and start a chemical reaction (fire) that does produce its own oxygen. Once that cell has lost all its charge, the reaction would stop, but until then the fire has compromised neighboring cells, which start the process all over again.

    Water won’t stop the first broken cell from discharging, but it can bring the battery down to a temperature where the fire is too cold to sustain itself. It contains the damage to the cells that are affected already and prevents more cells from igniting. This is how you stop a battery fire.

    The car gets put into a tank for several days to allow the broken battery cells to discharge safely, without overheating and causing another fire.




  • body weight (not including body fat)

    On the contrary (same source):

    Very little alcohol enters fat because of fat’s poor solubility. Blood and tissue concentrations are therefore higher in women, who have more subcutaneous fat and a smaller blood volume, than in men, even when the amount of alcohol consumed is adjusted for body weight.










  • Let’s say “you wouldn’t have noticed there was a problem if there was no mismatch”. But then a few years later that max length gets dropped or increased and suddenly your password, which has always worked, isn’t accepted anymore, because now you’re pasting 2 extra characters.

    I was also not talking about password fields, exclusively. Pasting stuff like customer identifiers or zipcodes into maxlength’d fields also begs for surprises, especially when you can’t see the whole input when you’re done with it.