Septimaeus

joined 1 year ago
[–] Septimaeus@infosec.pub 5 points 16 hours ago* (last edited 2 hours ago)

More abstract means more simple/general, but it’s easy to get lost if you weren’t ready to have concrete examples taken away, so examples are included for each translation below.

Note for the mathy: the following is supposed to be layman’s terms but if there’s a major inaccuracy please correct me.

1. A chu space is a “binary relation” between two sets. In other words, it can be represented as a matrix of pairs. E.g…Think of an ordinary table, where each cell relates a row to a column. A common application of chu spaces is computation, so imagine how rows could refer to possible states of a program and columns could represent the events transitioning one to another. Each cell would then represent an incremental change to a particular state.
2. Dropping the “closure requirement” means a given point need not be reachable from every other possible point. E.g…If on a computer you delete a file, but decide instead you wanted to rename it, you might not be able to get to the desired state in a single logical step. First you may have to reverse the last step (deletion) then execute the next (rename). So the set of points representing these steps wouldn’t be closed topologically.
3. Dropping the “extensional” requirement means that points can be considered distinct even if their contents are the same. E.g…In the file system example above, if you rename the file to the current file name, even if it results in no change to the current state, it can still be considered a valid transition to a distinct state.
4. Dropping the “two-valued” requirement means we don’t need to know for certain whether or not a point is included in a set. E.g…First, we say two-valued just to be inclusive of yes/no, T/F, 0/1, -1/+1, and other dyadic pairs. Not requiring it means we can work with values between the two extremes, such as the probability that a point is included in an open set. This is particularly relevant to quantum applications “where particles pop in and out of existence and generally behave like assholes” ().
5. The static matrix of #1 is a single slice of a more dynamic "continuous function” that lets us describe how a chu space transforms over time. E.g…In the file system example of #3, we wouldn’t want to literally represent each state and potential event in a matrix. Instead, we would consider the static matrix of as a “snapshot” of a larger continuous series of file system changes. (And it so happens that this is basically how incremental backup and version control systems tend to work.) Instead of fixed sets we would then have complementary functions mapping states forward to an event and mapping events backwards to a state.

[–] Septimaeus@infosec.pub 5 points 19 hours ago
[–] Septimaeus@infosec.pub 4 points 5 days ago

[static]
…and that Nuka-Cola Quantum colored sun…
[hiss]
…well it sets on the smooth and the unsmooth alike…
[static]
…so keep on the sunny side, friend, and choose Big Boss cigarettes for that smooth flavor…
[pop]

[–] Septimaeus@infosec.pub 2 points 6 days ago (1 children)

The latter, for Roth IRA.^A^ If you haven’t set one up before, it’s pretty straightforward.^B^

^A^: There is such a thing as a Roth 401(k) which if offered should definitely be your top priority up to employer contribution match.

^B^: Vanguard is often recommended for simplicity and low fees. You can pick your funds when contributing. Typical starting funds are VTI and VOO (or the mutual fund equivalents with slightly lower fees, VTSAX and VFIAX).

[–] Septimaeus@infosec.pub 3 points 6 days ago

Yeah those plastic ones are probably a quicker install too. The tempered glass in the photo is heavier than it looks.

[–] Septimaeus@infosec.pub 8 points 6 days ago* (last edited 6 days ago) (3 children)

Too nice for any N. American prison, unfortunately. This is just a bathroom reno.

Since they put the vinyl film on the glass after assembly (to avoid scratches) there’s an opportunity for this picture during every installation. Frosted matte translucent film is most popular.

[–] Septimaeus@infosec.pub 2 points 6 days ago* (last edited 6 days ago) (3 children)

Roth grows tax-free and has more long term flexibility compared to traditional IRA. The tradeoff is that it doesn’t reduce your taxes in the year you contribute. It’s the better option for most.

[–] Septimaeus@infosec.pub 8 points 1 week ago (1 children)

Depends on adhesive and era but today mostly yes

[–] Septimaeus@infosec.pub 1 points 1 week ago

For some reason, some folks think they can make themselves look better by making everyone around them look worse.

[–] Septimaeus@infosec.pub 4 points 1 week ago

And only because at some point they decided to stop hearing anyone who disagreed. It’s not just their kids who stop talking to them. Eventually everyone figures it out, and this type of person ends up pretty isolated later in life.

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