One HUGE problem I run into literally every day: the display and switch problem: where a webpage (especially a search results page) partially loads and shows something you want to click on, but is still loading, so you go to click on that thing, only for another element to suddenly load in and move everything on the page, causing you to click on some random thing and go to a different page. Another example of this is when you're doing just anything on a computer, you go to click on something, and another program produces a popup which appears an instant before you click, causing you to click on the popup. Generally I have no idea what these sorts of popups even say because they're then gone
I propose: a web standard where HTML elements that will appear when they are fully loaded have placeholder widths and heights settable via attributes, and show as a placeholder element before the HTML element is swapped out with its loaded form. Also, on the OS level, popups should have a grace period (of like 1 second) where you cannot click on their contents; to prevent accidental clicks
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Along similar lines is another major issue I've been dealing with the last few days: where when you're working on some physical thing that requires you move tools and resources between locations, and you (me) then forget where you left the tools and resources. Its been such a tremendous problem for me (I've been working on my house's plumbing) that I've probably spent combined 1+ hour over the last week just looking for things I don't remember where I set
This is related to CPU caching, and search algorithms. Its generally cheaper to maintain a cache and pull a bunch of related things into the cache, drag the cache around with you, etc, than it is to go back to the source of the things and get them again in the original way
I haven't found a solution to this, but my first order approximation is to keep a bin where I demand of my self I put anything I will use repeatedly (eg: tools, resources: pipe, glue, etc). Then, I am guaranteed to know where to look with a relative cheap search instead of performing an exhaustive search