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originally posted by: dragonridr
a reply to: tanka418
Again your grasp of science is truly astounding I really expect you to pull out the baking soda volcano any minute. Nature isn't biased your data is because of thr failure to detect al km thr stars.you attribute something to nature that is a limit of out technology and you seem to be clueless on how to correct for it. You know I'll say this I thought what your were doing was very cool at first. Until I realized you thought that this had some scientific purpose. It's more along the lines of a thought experiment with things we can't answer at this time. For example did you know that most stars are binaries seems so is the exception and not the rule. Though there are some that believe we do have a companion star. This alone adds new conditions to the feasibility of life.
originally posted by: dragonridr
Now your dealing g with what we can observe again you have problems with this. Your data doesn't represent brown dwarfs. Meningitis that about 80 percent of your data is binaries. See these are those pesky little details we have to think about in something we call science. This effects your data since you are basing your opinions of feasibility of life in a star system. Binaries are very complicated to make such assessments. For example it's believed alpha centurie even being an a type star could contain life because of thr arrangement if the binary system. The odd increases a lot if we through a brown dwarf into the mix. This would follow along the lines of the dogons who seem to think there is 3 stars there not just two.
originally posted by: tanka418
originally posted by: dragonridr
Now your dealing g with what we can observe again you have problems with this. Your data doesn't represent brown dwarfs. Meningitis that about 80 percent of your data is binaries. See these are those pesky little details we have to think about in something we call science. This effects your data since you are basing your opinions of feasibility of life in a star system. Binaries are very complicated to make such assessments. For example it's believed alpha centurie even being an a type star could contain life because of thr arrangement if the binary system. The odd increases a lot if we through a brown dwarf into the mix. This would follow along the lines of the dogons who seem to think there is 3 stars there not just two.
Yeah pesky little details; like no "proximityflag". In the Hipparcos dataset there is a data item called "proximityflag" this is used to indicate a stellar companion within something like 10 arc seconds...flagging a "close binary". While even a moderate separation in stars is frequently not sufficient to negate the effects of the companion, larger separations are not only "insulating", but far more common that "close" to "moderate".
Binary Stars like Zeta Reticuli have more than enough separation so that each star may have its own, relatively unaffected, solar system...in this case the separation is significantly less than 1ly...
Point here is, binary stars can be as abundant as they like and have little to no affect of the evolution of life...again, you should check out Gliese 67...A good example of a binary that may have an Earth like planet in its HZ, but, even with great time, never evolve anything sentient...due to its companion (1/3 Sol size...Red Dwarf)
By the way...in 118,000+ records in Hipparcos there are just over 10,000 close binary stars...just a wee statistic for ya.
What I was saying, and responding to was the assertion that there are very few stars above class "F", as well as few class "M" stars. I was pointing out that the quantity of class A, B and above are few because that is how nature has provided these class of star. So, it is not a true bias.
On the other end of the spectrum we have relatively few class "M" (relative to the actual population of class "M" stars) because of technological limitations. Neither of these conditions are compensable.
The accurate comment was made that my use of the Hipparcos further limited the number of class "M" stars available for inclusion (selection). I was commenting that this technological "filtering" was not detrimental to the investigation because it only removes the noise of class "M" too small and cold to be of significance to the investigation.
originally posted by: DJW001
Wrong. It is a natural bias. Lucky for you it works in your favor; it means "uninteresting" massive stars will probably not get incorporated into your template. On the other hand, if you had no other choice, I'm sure you could find a logical reason to include them. A stars tend to have discs of dust and gas, therefore the ETs mine them for raw materials. That's why they are a major "trade" center.
Which means that if the ETs came from an M class star, you would not be able to find their home solar system. Doesn't that strike you as being worth considering? After all, red dwarfs have extremely long lives, giving life a very long time to evolve into intelligent forms. (Your bell curve graph does not take that into account, BTW.)
"The accurate comment was made that my use of the Hipparcos further limited the number of class "M" stars available for inclusion (selection). I was commenting that this technological "filtering" was not detrimental to the investigation because it only removes the noise of class "M" too small and cold to be of significance to the investigation."
In your completely arbitrary opinion.
originally posted by: tanka418
a reply to: Keiyentai
Ahhh...okay...
You're right Poser isn't the best tool for that...however, we use the tools we have and can afford...Poser allowed me to put an object, representative of a star, at all the appropriate locations, and then view it with a camera that I can place where I need... Most of the stars however are much large than they should be for the scale...typically to make them easier to find/see
By the way; there are just over 5800 stars 150ly or closer...
originally posted by: Keiyentai
originally posted by: tanka418
a reply to: Keiyentai
Ahhh...okay...
You're right Poser isn't the best tool for that...however, we use the tools we have and can afford...Poser allowed me to put an object, representative of a star, at all the appropriate locations, and then view it with a camera that I can place where I need... Most of the stars however are much large than they should be for the scale...typically to make them easier to find/see
By the way; there are just over 5800 stars 150ly or closer...
Hence why I mentioned Blender. It's free and open source and a full 3D package like 3D Studio Max/Maya and has a huge community. It's only downfall is the UI is horrid but that's about it. For free it has a TON of features and has even been used in AAA movies for CGI so it can out do Poser/Daz Studio in all features.
Wrong. It is a natural bias. Lucky for you it works in your favor; it means "uninteresting" massive stars will probably not get incorporated into your template. On the other hand, if you had no other choice, I'm sure you could find a logical reason to include them. A stars tend to have discs of dust and gas, therefore the ETs mine them for raw materials. That's why they are a major "trade" center.
LOL...you realize you just said was wrong for saying exactly what you reiterated...are you paying attention???
And yes, I do have other reasons to not consider class "A" or class "B" stars...they typically don't exist long enough to evolve advanced sentient life...fact of nature.
Which means that if the ETs came from an M class star, you would not be able to find their home solar system. Doesn't that strike you as being worth considering? After all, red dwarfs have extremely long lives, giving life a very long time to evolve into intelligent forms. (Your bell curve graph does not take that into account, BTW.)
You should have read my earlier response...I addressed the issue of missing some of the more advanced "M" class stars...you didn't see that did ya...yes we might miss something, but, as I said, this is a first approximation...loss is expected.
And, yes, the bell curve takes that into account...
"The accurate comment was made that my use of the Hipparcos further limited the number of class "M" stars available for inclusion (selection). I was commenting that this technological "filtering" was not detrimental to the investigation because it only removes the noise of class "M" too small and cold to be of significance to the investigation."
In your completely arbitrary opinion.
Ya know, I'm really tiring of your "arbitrary" crap; prove it!
For instance, in the above; those decisions were based on 40 years of data acquisition/management/analysis system design, along with discussions with Astronomers, and Astrobiologists...so hardly "arbitrary" as you mistakenly assert. (BTW; those discussions were in relation to another project).
But then again, I suppose you kind of need a large arbitrary element, as it is one of your last straws.
originally posted by: DJW001
You certainly aren't. A biased sample is biased whether the bias is natural or deliberate. If your sample is biased, you can test it by applying the same methodology to a control group. When I suggested this, you scoffed. I was able to impose your template onto a random set of points, proving that any information present in your version of the map is the result of the data set's bias.
"And yes, I do have other reasons to not consider class "A" or class "B" stars...they typically don't exist long enough to evolve advanced sentient life...fact of nature.
Wrong, an assumption based on limited data. We only have one data point in our knowledge of the evolution of technological (as opposed to merely intelligent or sentient) life. Remember, we have had four major extinction events in our four billion year history. A luckier planet may have evolved technological species earlier.
You are the one making assumptions. It is up to you to justify them.
You have been discussing this with astronomers and exobiologists in this thread, yet you refuse to pay attention to the criticism.
Really?!!!?? Where are they?
To the best of my knowledge I am the only person here (in this discussion) with an advanced education! I've seen absolutely no evidence that there are any astronomers or "exobiologists" in attendance here...
Sorry man, but you are starting to make thing up just to support your prejudice against evidence and data of this nature...
edit on 12-4-2016 by tanka418 because: (no reason given)edit on 12-4-2016 by tanka418 because: (no reason given)
originally posted by: DJW001
You are the one who has built your entire theory on arbitrary assumptions:
1. You assume that Betty Hill's experience took place in the "real world."
2. You assume that the aliens were physical, and came from another star system.
3. You assume that what the alien showed Betty was a map.
4. You assume that the map was of a volume of space in our universe.
5. You assume that the map only showed stars, although Betty specified stars and planets, and took great care to draw the bodies in the foreground as planets.
6. You assume that the drawing she made was accurate.
7. You assume that the drawing was not precise. (This gives you a large degree of freedom when you attempt to match.)
8. You assume that the pattern of dots and lines on the map is unique, and cannot be superimposed on a random set.
9. You assume that it takes the aliens a finite amount of time to traverse space.
10. You assume that they must have originated in this universe within a 100 light year radius.
11. You assume that they reason like us, although their craft has a wide windshield that they turn their backs to when operating their craft.
12. You assume that the theories of stellar, planetary and biological evolution developed in the 1960's and 70's are fact.
13. You assume that the aliens would come from an F, G, or K class star because of the above.
14. You assume that the bias inherent in the Hiparcos data set doesn't matter. (Because you assume M stars don't count.)
As you should know by now, data without context is meaningless.
originally posted by: tanka418
Dropping all the pretense, all the BS there are only a couple of real questions that need answered...
is this
substantially similar to
A simple yes or no will suffice.
We have seen several serious attempts and another that wished only to mock this whole process. None of these has produced a match quite as good as the stars in the Tanka-Fish dataset.
So...given the mathematical probabilities involved; I would have to think; "No, it is not possible to define another "star set" that works with the precision and fidelity of my "star set".
originally posted by: TerryDon79
No. They are different. Anyone can see they're different. To change it and go "looks similar so it's good enough for me!" doesn't work in science.
That's because you have literally changed the data.
Precision based on changing the available data into your own data that is similar, but not the same, as the original.