Video on how Probability Works

Beefbisquit

Well-Known Member
[video=youtube_share;98OTsYfTt-c]http://youtu.be/98OTsYfTt-c[/video]

Excellent video explaining some of the misconceptions most people have about probability.
 

sonar

Well-Known Member
Good video. I too have noticed people are terrible at predicting probability, tending to think coincidence is far less likely than it is. Ask anybody what three lottery numbers are more likely to be drawn on any given day, "2-2-2" or "3-8-5". Almost everyone will say 2-2-2 far less likely even though both combinations are the same, 1 in 999.

The notion that coins, dice, or lottery balls have some kind of "memory" is a good one too. Like if you flip head enough times, then somehow, magically, tails is "due."
 

tyler.durden

Well-Known Member
Nice video, BB. QualiaSoup has my favorite skeptical/critical thinking video series, MP turned me onto these many threads ago and I send them to all my friends. I just finished Dawkin's, 'Unweaving the Rainbow' again, and it goes on about probability for an entire chapter. Really interesting stuff...
 

Zaehet Strife

Well-Known Member
after i get done with reading the god delusion im going to read unweaving the rainbow, the selfish gene, the ancestors tale, the blind watchmaker, and a devils chaplain. i havent read any, but i have heard very good things. the god delusion is fucking FANTASTIC.
 

Zaehet Strife

Well-Known Member
heres a video i found about the god delusion, i think it would fit well in this thread.

[video=youtube;LVr9bJ8Sctk]http://www.youtube.com/watch?v=LVr9bJ8Sctk[/video]
 

Heisenberg

Well-Known Member
Great video. I often bring up the concept of large numbers in real life because I find most people misunderstand them. This video taught me that I misunderstand them a bit myself. ;)

I had a plant hermie on me last year. It was a new strain and the only plant to hermie in the entire garden, and it shared a res with a different strain that did just fine. It was an early hermie, all factors were in check, there was no obvious stress, and when I sprayed it with reverse it barely helped. I determined that this was a true hermie and killed it off as well as it's cuttings.

My partner was livid at losing the strain. He swears the plant was just stressed and the cuttings would be fine. When I list all the evidence suggesting it was a true hermie, the only thing he counters with is a number he heard in a video. Female seeds have 1/1000 chance of producing a hermie. In his mind, this makes it impossible. I told him to consider that attitude sends out thousands of seeds each month. If 1/1000 is hermie, then for every 10,000 seeds, 10 hermies get sent out. Pretty small chance, but far from impossible.

Now I may be wrong about the plant, but that is beside the point. I am citing evidence and he completely discounts it's all based on probability. I am going by the principal that, once you eliminate all other possibilities, the remaining possibility must be true, no matter how improbable. I ruled out all the things that can cause a hermie and consider the other plants a control group. I consider a test to be when I sprayed it with reverse, and it behaved exactly as a hermie plant is expected to. (reverse corrects male flowers on female plants, does not help a true hermie) Of course I can not account for the hidden information I am not privy to, but I think this is sufficient evidence to stand against the probability factor.

This seems to be another way in which misunderstanding large numbers hinders people's perception, even a critical thinker who doesn't believe in the paranormal. What do you guys think?
 

tyler.durden

Well-Known Member
Great video. I often bring up the concept of large numbers in real life because I find most people misunderstand them. This video taught me that I misunderstand them a bit myself. ;)

I had a plant hermie on me last year. It was a new strain and the only plant to hermie in the entire garden, and it shared a res with a different strain that did just fine. It was an early hermie, all factors were in check, there was no obvious stress, and when I sprayed it with reverse it barely helped. I determined that this was a true hermie and killed it off as well as it's cuttings.

My partner was livid at losing the strain. He swears the plant was just stressed and the cuttings would be fine. When I list all the evidence suggesting it was a true hermie, the only thing he counters with is a number he heard in a video. Female seeds have 1/1000 chance of producing a hermie. In his mind, this makes it impossible. I told him to consider that attitude sends out thousands of seeds each month. If 1/1000 is hermie, then for every 10,000 seeds, 10 hermies get sent out. Pretty small chance, but far from impossible.

Now I may be wrong about the plant, but that is beside the point. I am citing evidence and he completely discounts it's all based on probability. I am going by the principal that, once you eliminate all other possibilities, the remaining possibility must be true, no matter how improbable. I ruled out all the things that can cause a hermie and consider the other plants a control group. I consider a test to be when I sprayed it with reverse, and it behaved exactly as a hermie plant is expected to. (reverse corrects male flowers on female plants, does not help a true hermie) Of course I can not account for the hidden information I am not privy to, but I think this is sufficient evidence to stand against the probability factor.

This seems to be another way in which misunderstanding large numbers hinders people's perception, even a critical thinker who doesn't believe in the paranormal. What do you guys think?
Well, I hate to lose a new strain so I would have probably done as your partner suggested and flowered a few cuttings just to make sure. Another factor to consider is that the seed bank does fuck up every now and then (human error), I've only ordered seeds about 5 times and once I received a ten pack of seeds that were an entirely different strain than what I chose! That's some pretty bad luck and I'd imagine very unlikely. I do agree with your thought process, I just would have gone an extra step and put a few of it's cuttings under 12/12 and watched them like a hawk...
 

Heisenberg

Well-Known Member
Ah well you may have identified a bias. By that time I hated the plant, and it was a strain I didn't want to begin with (one my buddy picked out). I was bitter that the damn thing took up my space, nutes, light ect and had the nerve to grow balls. Wasn't about to give her another shot at breaking my heart.
 

tyler.durden

Well-Known Member
Ah well you may have identified a bias. By that time I hated the plant, and it was a strain I didn't want to begin with (one my buddy picked out). I was bitter that the damn thing took up my space, nutes, light ect and had the nerve to grow balls. Wasn't about to give her another shot at breaking my heart.
LMAO! You failed to mention your feelings toward the plant ;) If he knows you well, your partner may have sensed your underlying hatred toward his new lady and some of his passionate reaction may have been a response to a possible agenda beyond your given reasons. By the by, what strain was it?
 

WileyCoyote

Active Member
As a person who has a degree in math, I really appreciate this video.

Damn, when I try to reason with my brother-in-law about the infinitely small chance he has in winning the lottery, he always responds with "somebody wins". I will relish him wathing the video, which explains his folly much better than I have. :)
 

Heisenberg

Well-Known Member
LMAO! You failed to mention your feelings toward the plant ;) If he knows you well, your partner may have sensed your underlying hatred toward his new lady and some of his passionate reaction may have been a response to a possible agenda beyond your given reasons. By the by, what strain was it?
It was GHS silver haze, but I don't blame green house. I think it is the nature of botany some seeds will be duds. I had a bad experience with Barney's LSD. It didn't hermie, it just turned out to be a really shitty plant. Shitty taste, shitty yield, shitty buzz, yet it is a strain with high praise so I assume it was just a bad genetic expression. The experience was so bad though that I will not be trying it again.
 

tyler.durden

Well-Known Member
It was GHS silver haze, but I don't blame green house. I think it is the nature of botany some seeds will be duds. I had a bad experience with Barney's LSD. It didn't hermie, it just turned out to be a really shitty plant. Shitty taste, shitty yield, shitty buzz, yet it is a strain with high praise so I assume it was just a bad genetic expression. The experience was so bad though that I will not be trying it again.
Yep. I've had the same experience and got to see these different genetic expressions of the same plant: my current favorite strain, Vanilla Kush (also from Barney's) expressed itself both ways. I bought a ten pack of these feminized seeds last year; one seed was a dud and didn't even sprout, and two other plants were just poor performer's (runty, produced less bud with sub-par resin production, and it tasted nasty). The other seven plants were fucking AMAZING producers in both quality and quantity, and I still have 3 ozs left in my personal stash that I refuse to part with. I wish I kept mothers back then, I will really miss her when she's gone. My custies still ask about her ;)
 
Top