Mike--
Quick reassessment of previous, re: filling an atmosphere with oxygen.
Top-level observation, my 22-year old goal of ensuring hab zones are
present is clearly inadequate.
I always knew I hated this process of grafting randomly generated stars
onto existing UWPs, and the more I dig into it, the more I hate it. It's
not only putting the cart before the horse, it's putting the cart about a
mile in front of the horse on the other side of a river.
Changes to below are, at this point
1. I am persuaded we want to get rid of the giant around the thin,
breathable atmo world. The Gooky one can get along with whatever it's got,
it's in a habitable zone, the atmosphere isn't breathable anyway.
One more fail.
7. Since it's a double and the V is presumably the primary and the giant
the secondary, either manageably (pre helium flash) or at a distance, it
doesn't croak the dense breathable atmosphere, I still think that's
do-able, but I may need you to re-explain why you thought you made the
error. Was it just order of stars (primary/secondary)? No big deal, give
yourself a pass.
8. Same as 7, same discussion. Standard tainted. We don't know what the
taint is, so we can think of it as an atmosphere still trying to get
oxygenated, or a million other things, like over-active volcanism. Still
think we can make this one work. Since the giant does not HAVE to force
the system to fail, I don't think we HAVE to get rid of it.
Now at 14 fails, grades dropped to 43.75% fails. Poop.
> Mike--
>
> Just finishing up the questions here because I said I would.
>
> I just realized that Regina is in the TNE book so I can see the UWPs and
> observe directly what you did in detail.
>
> I am going to be comparing your process to the thoughts that I have laid
> out over the past couple days so that I can translate your apples into my
> oranges. This is NOT to criticize your approach at all, but having thought
> through this before (22 years ago) to come up with a solution, I just have
> to approach this in a way that allows me to make sense of it. So again, as
> you've said to me several times lately, please don't take this as
> criticism or argument. I'm just trying to think it through by own lights.
> If being the idiot who tried to do this the first time grants me any
> benefits, maybe this is it. :-)
>
> As I said in an earlier e-mail, my first test is presence of hab zone or
> not.
>
> 1. You swapped Yres and Menorb not so much because you HAD to (both
> already had hab zones) but because assigning an Earthlike star to Menorb
> is nicer because it was a Hi-Pop world with a thin breathable atmosphere,
> and since Yres had an insidious atmosphere and fluid oceans it seemed like
> less of a waste to put an oddball bright giant star there, which probably
> started life around a B1 or B2 V.
>
> Again, please do not take this as criticism, but as both did have hab
> zones, I think of this as cosmetic, not required. However, given the
> desire you expressed in previous e-mails to permit as much as possible the
> ability for worlds to develop indigenous life, you moved the shorter-lived
> star away from the more hospitable world. While I might not have felt
> compelled to do that, I can understand why you did. (But, just for the
> sake of discussion, it might also be possible for life to form in gooey
> Yres with its previous V star, so maybe it's a coin toss.) In general,
> since there are bright giants in the galaxy, there ought to be some in
> Traveller, and just because they've croaked whoever used to live there,
> there is still a habitable zone for humans to colonize in, and that makes
> sense in the game. (Now if I'm reminded that Menorb has distinctive
> indigenous life that I'm overlooking I may have to penalize myself.)
>
> 2. For Uakye M9 V has no hab zone (discussed previously, dangit), so you
> bumped it up to K9. You could have bumped it up as low as M4, but once
> you're bumping, it's a matter of taste, and since its Atm is vacuum (very
> thin) K9 was fine. And actually in a form of (possibly superstitious)
> conservatism, Geo would often change M9s to K9s to only change one digit,
> as anything between K5 and M4 was a distinction without a difference
> anyway, so I thought that was fine, so you did what we would have done.
>
> But actually I believe that when we tried this back in 1992-93 we figured
> that worlds like this weren't that much more hospitable than airless rocks
> (0.1-0.42 atm) as they would require permanent "domed" habitats to allow
> survival anyway, so the presence/absence of stellar heat was not that big
> an issue. I might have said this didn't make the cut. If this were in the
> Wilds, these people would have died. For me this also is cosmetic,
> atmosphere not breathable without assistance, so not required.
>
> 3. Already discussed Alell, no hab zone, but still no hab zone, and as it
> is a Rich world, is Bad.
>
> Definite screw-up on my part, as it is a Rich world and requires extra
> attention. Call it a double failure.
>
> 4. Alell, Whanga, Feri, Beck's World, Moughas, D companion changed to V as
> had breathable atmosphere
>
> As I've written previously, on some level we figured that having a hab
> zone was the first priority, and these already did. And a degenerate means
> that it's maybe already made a mess like a planetary nebula, so could
> interfere with the indigenous life in the system, IF it is a close
> companion. On the other hand, if it is a far companion or a really small
> star to begin with (no red giant, goes straight to the left of the main
> sequence without making a mess), it might not interfere, and allow
> reasonable variation in the game under some circumstances.
>
> For a quick, safe rule of thumb, I concur with turning Ds into Vs for
> planets with atmospheres. To allow for the interesting variation that
> Traveller might want to admit, maybe not always. But for the sake of not
> quibbling, I'll take a full hit on five worlds, Five failures (separate
> failure for Alell).
>
> 5. Pixie, Enope, XX D companion changed to D as no atmosphere, so having a
> degenerate is okay
>
> While this is a semantic difference with no game effect, the point is to
> use the language correctly, so two more failures.
>
> 6. Regina, D changed to V as had breathable atmosphere. However, Regina is
> a special case, its system was described in detail in several Traveller
> products with its named stars Lusor, its D companion Speck, and Darida
> with a separate, so I left it as is, but should have changed Speck from M8
> D to D.
>
> While I deliberately made the decision to preserve the defined, named
> ("Speck") degenerate in Traveller's oldest defined world, I did fail to
> make the semantic change, so another failure.
>
> 7. Heya, did the change D to V as dense breathable atmosphere, but then
> swapped the luminosity classes. That got you two habitable zones instead
> of just one (the bumped V had none). Based on your remark below about a
> "home" star, I'm wondering if you roughed out the orbits to see how the
> star orbits and hab zones interacted. However, you describe this as a
> mistake to have kept the giant, and I don't understand this. The K III
> would have previously been, say a G V, and while it would have fried its
> original habitable zone, it has pushed this habitable zone outwards. For
> smallish stars (including Sol) this new period could last a few billion
> years, long enough for life to evolve again before the helium flash, and a
> similar period after helium flash. But more to the point, depending on how
> the binary system is configured, the red giant behavior may not interfere
> with worlds in the habitable zone of the existing V star, so does not
> necessarily impair its ability to continue developing life. Moreover, it
> does not at all prevent colonizing humans in the past 8000 years from
> living there. Since giant stars do exist, we don't want to exclude them
> from the Traveller universe, so these stars could easily be in the length
> period before or after the helium flash(es).
>
> Since the first issue was a D in a system with breathable atmosphere, I
> will take this as another failure, but since I'm not yet convinced that we
> have to expunge all giants, because at the very least we can accept that
> some worlds have lost their original life and have been colonized since
> then, I will hold of on awarding myself a double failure at this point.
>
> However, Heya is a Rich world, so the current single failure counts
> double.
>
> 8. Keng, as with Heya, did the change D to V as standard tainted
> (semi-breathable) atmosphere, but then swapped the luminosity classes.
> That also got you two habitable zones instead of just one (the bumped V
> had none). You also call this a mistake, same comments as Heya above.
>
> Same as Heya above, single failure, possible double failure, pending
> further discussion.
>
> One thing that I assume you have not done with the binaries/triples is
> work out their orbits to see what the real impact is because of the time
> required. You are presumably aware that depending on how the rolls work
> out you can be prevented from using the habitable zones. Based on some of
> your remarks above (mostly about Heya and Keng) it appears that you may
> have made some assumptions, or placed them by fiat. However, the problem
> with this is that Traveller provides no means to store these
> configurations in the UWP data, so even though you work out the system
> configuration in a satisfactory way, someone else may not, and you can't
> tell him what yours was anyway. The vast majority of UWPs have probably
> not been processed all the way through, and another piece of evidence for
> this is that there are so few quad star systems in the 3I data.
>
> In any case I am skeptical of the ability of multiple star systems to
> create worlds that are stable enough for life to develop. Complex patterns
> of heating and cooling and tidal forces on the worlds themselves and their
> orbits create a lot more variables that work against a world getting the
> chance to develop life. So a lot of the work that we spend on "fixing
> stars" can be squandered in a multiple star system where you can't get the
> orbits to work out.
>
> So, out of 32 worlds in the subsector, I've scored 13 failures against
> myself, so a 40.6% failure rate. That's not weighted against total
> possible number of failures against the pre-TNE data, but I'm not trying
> to wheedle my way to a more presentable score anyway, so I doubt I will
> take the time. But the point is that, assuming Regina is representative, I
> have a better understanding of what "not far enough" means, so I guess I
> can live with that.
>
> What do you think of my report card, Dad?
>
>> To illustrate what I am talking about with the stellar data, let me show
> you
>> what I did with the Regina subsector. Do note that, while this is taken
> from
>> my 1248 work, there are no spoilers here, as I have stripped out
> everything
>> but the hex location, world name, and stellar data. No spoilers here.
>>
>> The data is below, but let me highlight what was done for the changes:
>>
>> - Any star that was size "D" either becomes just "D" or is moved to
> "V", depending on the atmosphere present. So, Alell, Whanga, Regina, Feri,
>> Beck's World, and Moughas all get their white dwarf promoted, and Pixie
> and
>> enope get their white dwarf outright listed.
>>
>> - Stars too big (e.g. Menorb) or too cold (Uakye) get their star
> shifted to something more sustainable. In the case of Menorb, its star was
>> swapped with the nearby Yres so that the Red Giant star didn't totally
> disappear, but both worlds end up with more reasonable stars for their
> environment.
>>
>> - Heya and Keng were done a little more creatively, and the stars
> were
>> swapped so that the giants would be retained, but the other star could
> actually host the home world. This is an example of a mistake I made, as I
>> really should have wiped out the Giants, and at the least, the "good"
> star
>> should have been listed first (as it is the home star of the listed
> world),
>> not second. Even so, the attempt was to give the relatively nice world a
> compatible star, but not completely eliminate the Giant that was
> originally
>> listed.
>>
>> - As a side note, the Regina subsector was host to two of those
> seven
>> duplicate names: Kinorb and Inthe.
>>
>>
>>
>> This is just an example of what DED and I are talking about when we say
> RSB
>> "did go far enough". However, just to stress this to ridiculous
> extremes,
>> this is not really a criticism or complaint. You were the only one who
> ever
>> even really tried to fix that stuff. That it wasn't an unmitigated
> success
>> is irrelevant; you tried. We both recognize that effort and salute it.
>>
>>
>>
>> Mike West
>>
>>
>>
>>
>>
>> Anyway, here is the data. Note that the "new" is shown first, and the
> "old"
>> is shown second. Anything with only one entry wasn't changed.
>>
>> 1705 Efate K4V
>>
>> 1706 Alell M7V M7V <- M7V M7D
>>
>> 1802 Yres M5 II <- G5V
>>
>> 1803 Menorb G5V <- M5 II
>>
>> 1805 Uakye K9V <- M9V
>>
>> 1806 Whanga A1V M1V <- A1V M1D
>>
>> 1807 Knorbes G3V
>>
>> 1808 Forboldn G0V
>>
>> 1809 Ruie G5V
>>
>> 1810 Jenghe M0V
>>
>> 1903 Pixie M0V D <- M0V M1D
>>
>> 1904 Boughene K7V
>>
>> 1909 Hefry K6 II M6V
>>
>> 1910 Regina F7V M6V M8V <- F7V M6V M8D
>>
>> 2005 Feri G4V M3V <- G4V M3D
>>
>> 2007 Roup F9V
>>
>> 2106 Pscias K5V
>>
>> 2110 Yori F1V
>>
>> 2201 Dentus M2V
>>
>> 2202 Kinorb-1 G7V
>>
>> 2204 Beck's W M0V M2V <- M0V M2D
>>
>> 2205 Enope K6V D <- K6V M5D
>>
>> 2207 Wochiers F0V
>>
>> 2303 Yorbund M3V
>>
>> 2306 Shionthy M4V
>>
>> 2308 Algine G9V
>>
>> 2309 Yurst K9V
>>
>> 2402 Heya M8 III K6V <- K6 III M8D
>>
>> 2405 Keng M9 III G5V <- G5 III M9D
>>
>> 2406 Moughas K9V M9V <- K9V M9D
>>
>> 2408 Rethe G7V
>>
>> 2410 Inthe-2 F8V
>>
>>
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