InfiniteNow Posted June 22, 2007 Report Posted June 22, 2007 Now, Now, Now...:hihi: :applause: :cheer: :applause: :cocktail: Quote
CraigD Posted June 22, 2007 Report Posted June 22, 2007 Somehow, despite having been an exalted Y2K guru (I kid you not, months into 2000, I learned that I actually had Y2K project groupies – though having groupies but being totally unaware of it rather defeats the whole concept of a groupie), I’ve missed out on this thread ‘til now – or maybe I avoided it out of acquired, unconscious aversion to anything with “Y2K” in its title. ;) So here’s a bit of niche technical trivia: for applications written in the MUMPS language (including repackaged & renamed implementations such as Intersystems Cache), a major, or possible the major “Y2K” problem will actually occur in 2010. This is because, when a 2-digit year is used for collating (ordering) purposes in a MUMPS global or local variable, the non-canonic numbers “00”, “01” … “09” collate after canonic ones like “10”, “60” and “99”. “10” is the first 2-digit year that will collate before “99”. Given the awesome sums of cash spent in Y2K projects, and the failure for a gratifying catastrophe to ensue – our Y2K project is where my org got goodies from its shortwave ethernet gear to a satellite TV hookup (to watch the end of the world on CNN, from our “command center”), not to mention the most egregious bonus I’ve personally ever gotten – I doubt there will be a 2010 project to speak of in the MUMPS world. Anything that does break should be easy to fix – not really Armageddon/Ragnarok -class problems. The Y2K mega-projects should have gotten all the 2-digit years out of 99%+ of the MUMPS data existent. There is, however, a small, technical possibility that something will break in a date-related manner when 1/1/2010 begins to appear. If the data type for Rep Power was a "tiny int"--one byte--many of us would have lit the Tilt light back at 256. …Most likely its an int--4 bytes--so the Universe is likely to disintegrate before it is a problem...Ah, another worthy intuition (Buffy’s) falls victim to undervaluing the nature of exponential growth! As anyone who’s noticed that pale-blue-bar only rep bars are becoming increasingly rare has likely noticed, as the average rep power of hypgraphers swells, so does the rep growth rate. Based on a simple model where number of members is constant (not the grand hypography mission plan!), 1K of rep power appears after 38 rep-giving cycles, 1M after 76, 1G after 114, and the 2[math]^{32}[/math] crash barrier after 122. Guestimating the current era of hypography’s start date at 7/2005, this gives a 32-bit doomsday of late 2014. Assuming a linear membership growth, it falls to mid 2012. Assuming an exponential membership growth, if falls to late 2010. Increasing the number of bits won’t postpone it much – 32-bit doomsday is 3.5 years off, 64-bit, 4.75 y, 512-bit in 11 y. In 2600 years, it’ll be impossible to store a typical rep power in 2[math]^{30}[/math] bits – that is, on a 1GB storage device We better revamp our rep system pretty soon, eh? TheFaithfulStone 1 Quote
TheFaithfulStone Posted June 22, 2007 Report Posted June 22, 2007 Mark Twain was once asked what the greatest invention of mankind was. Answer: Compound Interest. TFS Quote
Buffy Posted June 22, 2007 Report Posted June 22, 2007 Ah, another worthy intuition (Buffy’s) falls victim to undervaluing the nature of exponential growth! As anyone who’s noticed that pale-blue-bar only rep bars are becoming increasingly rare has likely noticed, as the average rep power of hypgraphers swells, so does the rep growth rate. Based on a simple model where number of members is constant (not the grand hypography mission plan!), 1K of rep power appears after 38 rep-giving cycles, 1M after 76, 1G after 114, and the 2[math]^{32}[/math] crash barrier after 122. Guestimating the current era of hypography’s start date at 7/2005, this gives a 32-bit doomsday of late 2014. Assuming a linear membership growth, it falls to mid 2012. Assuming an exponential membership growth, if falls to late 2010. Increasing the number of bits won’t postpone it much – 32-bit doomsday is 3.5 years off, 64-bit, 4.75 y, 512-bit in 11 y. In 2600 years, it’ll be impossible to store a typical rep power in 2[math]^30[/math] bits – that is, on a 1GB storage deviceIsn't inflation just totally sucky? The Future Value of nothing is still nothing,Buffy Quote
TheBigDog Posted June 23, 2007 Report Posted June 23, 2007 The Future Value of nothing is still nothing,BuffyThere is already a thread for that discussion! :shrug: Bill Quote
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