I’m curious why you don’t think this is significant?
This is a pretty high house edge (or whatever you want to call it) for a game that seems the most fair as possible.
Comment on "Fair" coin flips appear to not be all that fair
wmassingham@lemmy.world 1 year ago
tl;dr:
The standard model of coin flipping was extended by Persi Diaconis [12] who proposed that when people flip a ordinary coin, they introduce a small degree of ‘precession’ or wobble—a change in the direction of the axis of rotation throughout the coin’s trajectory. According to the Diaconis model, precession causes the coin to spend more time in the air with the initial side facing up. Consequently, the coin has a higher chance of landing on the same side as it started (i.e., ‘same-side bias’).
“Higher chance” being 50.77% to land on the same side it started from. But this varies by person; apparently some people introduce more precession than others. But even if you could figure out how to do it reliably, I wouldn’t bet the farm on it.
PetDinosaurs@lemmy.world 1 year ago
beeng@discuss.tchncs.de 1 year ago
Where are coins flipped multiple times in order to gain such value from doing so? I can only think of 2up being played in Australia, 1 day per year and they don’t flick it with their thumb, so…
Where is the “house” gaining so much?
PetDinosaurs@lemmy.world 1 year ago
You can bet on dice and coin flips.
“I bet you a dollar that my coin flip will come up heads?”
This research suggests that this is not only profitable, but can be improved upon.
Snowplow8861@lemmus.org 1 year ago
I think the question is, where can you bet on a single coin flip? Maybe because I’m Australian, there’s only one day a year you can bet on a (two) coin flip legally here. Everyone else seems to generally understand that coin flips aren’t fair for gambling and therefore is illegal.
If this paper was like ‘this is how corruption in sports…’ rather than ‘this is like that magician cup and balls trick’ then I’d understand your concern.
But like you said, you don’t even have a coin in the house, so the practical side is day to day, perhaps not even once a year, not only are you not deciding on a coin flip, even if you were, you’d (or whomever was flipping it for you) have to learn a technique to see it affect you.
beeng@discuss.tchncs.de 1 year ago
Where…?
SayJess@lemmy.blahaj.zone 1 year ago
The illusion of a coin flipping in the air allows those that have mastered the act to get near 100% precision.
Veltoss@lemmy.world 1 year ago
Crazy how simple and obvious that seems after you see it, but I never would have suspected it if someone did it right in front of me.
SayJess@lemmy.blahaj.zone 1 year ago
Right??
PetDinosaurs@lemmy.world 1 year ago
Omg. I must learn this.
Shit. I have zero cash in my house.
SayJess@lemmy.blahaj.zone 1 year ago
I tried for a few minutes, before my son got bored and wanted to move on 😜. If you do learn it, let us know!
PetDinosaurs@lemmy.world 1 year ago
How old is your son? I imagine I’ll do the same, but this is the only magic trick that I’ve really wanted to learn. My son has some fine motor delays so he won’t be able to do this.
I realized that I’ve interacted with you a few times here, so I ended up looking at your comment history. We seem to share a lot of similar characteristics.
I noticed that you’re trans and had a Q&A. I’m cis-het and I missed that session. I hope that we’ll interact again. I want to understand T as well as I understand LGB. I just don’t know anyone T.
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