beagle3

72 ms·

871.
Fredkin Gate – an element of reversible computing(en.wikipedia.org)
1 points by beagle3 6y ago|0 comments
872.
by beagle3 6y ago
To add: this is Red Hat Linux 6 or 7, not Red Hat Enterprise Linux - I fondly remember RHL 7.3 in 2002 as the last RedHat I liked; updates were still through RHN or Red Carpet (don’t remember if yum was already used). RHEL, Fedora etc arriv
873.
by beagle3 6y ago
Do you have a reference for this? It was my assumption too, reading about the Pandemrix vaccine, but I didn’t find any dependable references for this.
874.
by beagle3 6y ago
Suggestion: Arxiv and many blog archives encode the year in the URL; you could probably add a 3-line filter that suggests a year in case it’s arxiv or /yyyy/ in the URL when yyyy is in range 2005-$currentyear Also: thanks for all
875.
by beagle3 6y ago
The HN title is missing (2012), mind you.
876.
by beagle3 6y ago
Then it isn't destructor-free (and not passed by reference if it's on the stack).
877.
by beagle3 6y ago
Or even more simply, by blowing up the stack. If you manage to do 2^40 calls deep without blowing up the stack, you have TCE, if you do blow up the stack, you don't. And you can tell if you blew up the stack by setting up an exception
878.
by beagle3 6y ago
Some languages (Python, Tcl, R and possibly others) expose the stack as part of the language/standard-library, and thus an implementation that DOES do TCE cannot be compatible. In python, it's mostly visible through exception obje
879.
by beagle3 6y ago
If you need an infinite loop (or very large iteration count), and rely on TCE but it is not available, the semantics of your program will change. In the "best" case, you'll get a stack overflow exception. In worse cases, your
880.
by beagle3 6y ago
It might be easier in those languages, but C (and C++), Scheme, Lisp and Nim have macros that could obscure a tail call's missing elimination. It was never a problem for me because I never trust the compiler to do TCE and structure my
881.
by beagle3 6y ago
I don’t like that it has no special mention. In a factorial function, fac(n-1) would be a tail call, but 0+fac(n-1) would not. It would be nice if one could annotate (and thus make the compiler verify) tail calls.
882.
by beagle3 6y ago
Password rejection rules are the primary cause of sticky notes with passwords under the keyboard/on the screen - and they are phishable, loggable, videoable and can be deduced from the keyboard click sounds. 2FA / 3FA is a minimum
883.
by beagle3 6y ago
TCO is an optimization. When it’s a semantic language feature like in Scheme, it should be called “Tail Call Elimination” because lack of it changes program semantics (thus not merely optimization)
884.
by beagle3 6y ago
Make it an error unless all parameters passed are destructor-free (because there is non like int/pointer, or because they were passed in by reference)
885.
by beagle3 6y ago
Is it user accessible at least? The Android backup is not.
886.
by beagle3 6y ago
I suspect the Google/Facebook deal for "free backup of WhatsApp chats on your Google account" is exactly that. WhatsApp had perfectly usable encrypted backup - which took up space on your Google backup. And then, all of a sud
887.
by beagle3 6y ago
Or google voice for a one time fee of $25 if you trust google (and you could still use it through google voice)
888.
by beagle3 6y ago
Neither was effectively available on phones ever. This is in relation to iMessage vs BBM vs whatever was popular on Android at the time. (And they got on boarding, group functionality and UI better than anyone for a very long time)
889.
by beagle3 6y ago
I’d be surprised if this isn’t just whitewashing some previously shared data. Also, a preparation for antitrust action - once the data is shared and integrated, even if they are forced to separate WhatsApp, they have all the metadata (which
890.
by beagle3 6y ago
Average income per user is (say) $10/year. 80% of population is worth $5 and 20% is worth $30 ; but all of the YT premium subscriber are from the 20%, so despite the average only being $10, offering it for less than $30 will lose money
891.
by beagle3 6y ago
It is the same in Israel. And yet, there’s room for some private health services. In the public system, you usually have a room mate after an operation. If you use the private system, you get a private room and get to request specific food.
892.
by beagle3 6y ago
> In Canada, while in general private cover is not illegal, for covered health services, it roughly speaking does not exist and my statement that you "have nowhere else to go" holds. The key is “covered health services”. E.g. a
893.
27th International Obfuscated C Code Contest winners published(ioccc.org)
212 points by beagle3 6y ago|45 comments
894.
by beagle3 6y ago
But things are indexed to inflation assuming it represent the dynamics of “this is what you need to maintain your current quality of life”.
895.
by beagle3 6y ago
> If a thousand small companies have thousand customers each. And these small companies experience an outage per quater, then a million businesses suffer every quater. Not all companies are created the same. Microsoft, Google and Faceboo
896.
by beagle3 6y ago
Freud’s work wasn’t science or resembling it. It was a mix of observations and thoughts. Biology at the tine was way closer to modern science. In fact, Karl Popper’s seminal work that characterized science and is essentially used to define
897.
by beagle3 6y ago
Thanks. Should be noted that when talking about e.g. Python dictionaries (and some other in-memory associative arrays), "ordered" refers to insertion order, where as "sorted" refers to key order.
898.
by beagle3 6y ago
> you're selling hardware that is almost a decade old and can't be used as a daily driver today. My iPhone 6S is more than 5 years old, and is perfectly usable as a daily driver (and my SO's iPhone 6 is too - it's 6 y
899.
by beagle3 6y ago
Who is effective on your scale? I suspect Jobs, Gates, Ballmer and even Pichai have alienated more people than Torcalds, if that’s your metric (it’s hot mine). Though Linus is the only one doing it in public - other than some anecdotes abou
900.
by beagle3 6y ago
> leadership that (mostly) works (in the military) I'd say by everyday metrics, military leadership doesn't work. It is incredibly wasteful, structurally leading to the $5K hammers and an entire year to design an official fac

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