The YouTube channel Veritasium made a community post asking people to guess how many jelly beans are in a jar. Traders are encouraged to submit their own guesses via the link.
See the jar here: https://www.veritasiumjellybeans.com
Companion market:
Outcome will be verified via media produced by Veritasium. If this information is not made public before January 1, 2030, then all market answers resolve N/A.
The Market Creator has no relation to Veritasium nor has knowledge of the correct answer at time of market creation. Market Creator may only trade on this market after 1 week of operation or after 10 unique traders have traded, whichever happens first. Market Creator cannot trade between knowing the correct answer and resolving the market. Market Creator or Mods may halt trading if Veritasium announces an imminent release of the correct answer.
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Bet on whether Manifold's estimate of 1750 (currently and roughly over the last 24 hours of this market) will be closer than Veritasium's crowd-sourced estimate here:
https://manifold.markets/bens/will-manifold-be-more-accurate-than-ESUsQREOtp?play=true
Bet on whether Manifold's estimate of 1750 (currently and roughly over the last 24 hours of this market) will be closer than Veritasium's crowd-sourced estimate here:
https://manifold.markets/bens/will-manifold-be-more-accurate-than-ESUsQREOtp?play=true
@bens We also need a market for what Veritasium will reveal the [mean, median, whatever] will be from the survey!
We got a shoutout on the Manifold Markets Substack email! I am honored, but Veritasium gets credit for making the almighty standard this market operates on. If the Veritasium team is watching, you've given a community something silly to focus on in these trying times, and we appreciate it.
@bens You can modify/edit your comment so it uses the "Add Question" tool instead of a link. It would be super cool to see the odds presented here live with that edit -- it would invite people over to your market for potential arbitrage opportunities.

@Quroe That which is a jelly bean must have in its existence a half of a jelly bean. This having been proved it is evident that the same must hold for the half of a jelly bean - namely, it too must have a half and so on until infinity. It is evident that a finite space cannot - by it's nature - hold an infinite object. Therefore, since this is impossible, the infinite cannot exist in the finite plane, and we must conclude that the jelly bean cannot exist.
@FergusArgyll Zeno's Paradox can be overcome by demonstrating that, while infinities do exist, we can count infinitely many segmented portions of jelly beans and still have finitely many jelly beans.
That, or we invoke our inner lawyer and define a jelly bean to be whatever descrete unit the Veritasium team counts in the jar when they do their tally.
I think people are forgetting that internal packing is different than packing at the edges of a jar.
For example, think about whether it would be more efficient to randomly pack jellybeans against a smooth wall or against a roughly textured interior. Again, this is not maximal packing, but random packing.
Just going off the outer wall packing that we can observe, using an ImageJ macro, one might estimate about 1800-1850 beans. But when you consider that ~2/3 of the beans are in the interior, and the packing there is about 80-90% as efficient, you get ~1641.
I averaged this value with the community's expected value, since I was assuming that they had at least some information I had not considered, such as buying their own jars or counting the beans manually in the video, or something, and got a value of 1695, which I submitted. :)
@bens you also have to remember that many jars have concavity on the bottom surface. That chops off about a dozen beans.
@bens also, if the jar was sealed under vacuum, you'd get some unexpected jellybean shrinkage, by about 3-5% per bean, which might matter if you've bought your own beans and jar.
@bens additionally, depending on how long the jar has been sitting for, it's possible that jellybean-consuming mites/parasites/bacteria have eaten away a void in the center of the jar, invisible to the camera. This might have resulted in a loss of a few dozen breans.
@bens I lost some trust in Veritasium after the Poynting Vector video. He might put one huge jelly bean in the middle for the views.
I counted how many are visible on each face of the video jar. On average, about 205 beans were visible on each face.
On the jar from robm, there were around 170-175 beans visible on the one face we saw.
My methodology is not really any more complicated than that. I'm really into the >1250 and <1750 zone. Probably also <1600 but hard to say. I did enter a guess of 1453 in the online form.
If robm is lying about the count of beans in the jar I could be in big trouble.
@Eliza I'm starting to think it's a 2l jar, so 1.33x the volume of mine, or 1640.
@retr0id 's picture needs to scale my jar up about 10% to match imo, which also roughly matches that number, and still makes my jar look slightly smaller than Derek's.
@Spin had also independently linked a 1.5l jar. It looks really close, but a 2l isn't that much bigger in any linear measurement.
@Quroe but it's not 10 beans wide, more like 7-8. And counting all visible beans on the side would estimate almost 2 layers.
@robm Perhaps there's some light refraction near the edges that we're not accounting for? If I take a sample of a few horizontal lines, I get 9 to 11 beans, which I average out to 10.
@robm 9*9*23 = 1863... Aaaaaalright maybe I can get some exposure to some lower brackets.
@Spin my first guess (the one I submitted) was 7*7*(7*2.2)=754
So I keep revising upward. Not a good sign.
@Spin Are we confirming that your previous loan should actually be repaid by the one month term I thought we agreed on before? I had some confusion with the insurance policy I bought on that because of that.
@Quroe sorry yes sure we can stick to 1 month timeframe (where I can elect to pay you back earlier if I want to) so essentially I'm paying you back M7500 total on or before June 28
@Spin Final confirmation. If I extend 3k more to you, the previous loan is also due at its original date, and this new one is due one month from now. 3k to you now, 4.5k back to me in a month for this loan. Please confirm?