2010.06.11 19:00 - DSL

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    The Guardian for this meeting was Pema Pera. The comments are by Pema Pera.

    For the first ten minutes I was alone, watching the ever rippling waters in the pond.  At some point Calvino arrived, and stayed put for a couple minutes.

    Pema Pera: Hi Calvino!
    Pema Pera: Calvino?
    Calvino Rabeni: Hello
    Pema Pera: slow rezzing?
    Calvino Rabeni: Sometimes after a teleport, the viewer just shows the progress bar a very long time
    Calvino Rabeni: I think it sends me there, but doesn't show it
    Pema Pera: ah, okay, yes, I know the "feature" :)
    Pema Pera: I thought you were lost in contemplation :-)
    Calvino Rabeni: I was :)
    Pema Pera: contemplating a bar . . . .
    Calvino Rabeni: But I thought I could do it in the bardo state between requesting TP and arriving
    Pema Pera: hahaha, yes
    Pema Pera: the bar-do state
    Calvino Rabeni: haha that one, while waiting for the "bar" to "do"
    Pema Pera: yes, as opposed to bar-be
    Pema Pera: another avatar
    Calvino Rabeni: The gallery is filling up inside the dome - have you visited it?
    Pema Pera: not yet, should do soon, has been a very busy week
    Pema Pera: do we have an opening day already fixed?
    Calvino Rabeni: I don't recall any opening day
    Calvino Rabeni: My entry is kind of "just in time" creation
    Pema Pera: :)

    We turn to the new wiki, on http://wiki.playasbeing.org/

    Pema Pera: I guess the new wiki is now behaving reasonably well?
    Calvino Rabeni: I was just thinking of that, btw.
    Calvino Rabeni: Yes, but today I discovered the RSS feeds are not active
    Pema Pera: I'm really happy that the whole transition went so smoothly, without downtime.
    Calvino Rabeni: therefore, the recent changes listed on the home page, appear to be frozen to July 4th
    Pema Pera: ah, that can probably be adjusted relatively simply
    Pema Pera: June 4th?
    Calvino Rabeni: Sure, the adjustment will be easy ... once found
    Calvino Rabeni: June that is :)
    Pema Pera: hahaha, yes, "in the last place you looked" as they say . . . .
    Pema Pera: my favorite expression in the English language
    Calvino Rabeni: RIght, and the self-organizing nature of the self-representing mindtouch wiki documentation is not self-comprehending
    Pema Pera: :-)
    Calvino Rabeni: only the parts are documented, so it's hard to see all the pieces that work together to make the feed work
    Pema Pera wonders who came up with the name "mindtouch" . . . .
    Pema Pera: the wiki does often seem to have a mind of its own, when I try to edit it!
    Calvino Rabeni: one guideline - don't use shift-enter any more
    Pema Pera: (never used it :)
    Calvino Rabeni: ok, I was advised to do so, and not sure who else does
    Pema Pera: (now I'm getting curious to try!)
    Pema Pera: (and control-enter and option-enter and command-enter and fn-enter)
    Calvino Rabeni: you can figure out the difference, next time entering text
    Pema Pera: will be soon! I'm posting the log for today

    Alas, I had to leave early.

    Pema Pera: but as I mentioned on the email list, unfortunately I'll have to scoot out in five minutes
    Calvino Rabeni: Yes
    Pema Pera: to get to an unexpected lunch meeting
    Pema Pera: sorry about that
    Pema Pera: but I've claimed the log, so I'll take care of posting.
    Calvino Rabeni: what are your main activities these days?
    Pema Pera: recently more astrophysics
    Pema Pera: more than I've done in the last three years in fact, since I got into virtual worlds
    Calvino Rabeni: ah, what's the topic area?
    Pema Pera: astrophysics computer simulations, with also branches into special-domain language development and even category theory
    Pema Pera: another branch is doing simulations with higher than double precision
    Pema Pera: in fact hundreds of digits precision
    Pema Pera: there is a good library for doing that, gnu mp
    Calvino Rabeni: does special-domain language mean the same as "domain-specific language"?

    This is the technical term that led to the title of this session :)

    Pema Pera: when using a couple hundred digits word length, that library slows down by only a factor of a couple hundred, compared to using the hardwired double precision floating point operations
    Pema Pera: (yes, domain-specific, that's what I should have said).
    Calvino Rabeni: ah,ok
    Pema Pera: so interestingly, although Ruby is 200 times slower than C in many operations,
    Calvino Rabeni: is that using some kind of metamodeling middleware to do the DSL?
    Pema Pera: using 200-digt precision it becomes just as fast to program in C or in Ruby :-)
    Pema Pera: For our DSL project, spearheaded by a grad student here in Kyoto, see http://www.geocities.jp/takascience/hakubi/02-proposal-en.pdf
    Pema Pera: off to lunch now
    Pema Pera: cy!
    Calvino Rabeni: bon apetit
    Calvino Rabeni: :)

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