Will there be visibly less mold on the bread under the far UV light in a week?
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resolved Feb 21
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@GavrielK is performing an experiment with far UV spectrum light at Mox, @Austin’s new coworking space.

We’ll wait around a week and I will be the judge of moldiness.

  • Update 2025-02-17 (PST) (AI summary of creator comment): Clarification on Resolution Criteria:

    • The comparison will be made against the bread on the left.

    • The market outcome is determined by assessing whether the mold on the far UV illuminated bread is visibly less than that on the bread on the left.

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Someone threw away the bread! Now we'll never know. Sad!

@SG NOOOOOOOOOOO 😭

For the replication study: Same room to control for temp/humidity, and a big sign that says "FOR SCIENCE DO NOT THROW AWAY OR EAT"

@SG that's sad but kind of funny. I look forward to round two.

@SG Armabreaddon hath struck

@SG i once ate military rations from the 1960s and there wasn’t mold on the crackers but i did get very sick a few days later

kinda far away from the UV source!

Are they being stored that close together for the entire duration of the test?

@Lun Eric Neyman below clarified the breads are in separate rooms! (the above photo was taken when they were irradiating both plates to "reset" them to near-zero mold-spore levels.) Eric's comment: https://manifold.markets/SG/will-there-be-visibly-less-mold-on#y3ymkdy5yvm

Here's a paper specifically testing a week of far-UVC against mold growth!
https://pmc.ncbi.nlm.nih.gov/articles/PMC11218994/

Check out Figure 1; I'd say that's a pretty dang visible difference. (And see Fig 1c: even the lowest dose of far-UVC almost cut growth to zero.)

My one concern about your experimental setup as seen in that photo above, is that the Control Bread is too close to the Experimental Bread; it may be in the lightcone of the far-UVC rays. Would you mind shifting it across to the opposite side of the table?

Far-UVC anti-mold fridges when???

(edit: question, what's the lamp in question? Just curious about its specific strength.)

@NickyCase, @GavrielK knows the brand

@NickyCase The plates are actually in different rooms! The photograph was taken when we were irradiating both plates (so that they start relatively sterile).

(I think the picture is misleading and the description should be clarified. @SG)

@EricNeyman Oh nice, thanks for clarifying! ( Probably too late now, but if there's a replication in the future, could we have the breads in the same room? So that they're exposed to the same humidity & temperature. Yes, 100 Mana is enough to turn me into Reviewer #2. :P )

bought Ṁ7 NO

Is the question “visibly less than before” or “visibly less than the bread on the left”?

Suggest resolving by taste test, can’t be subjective over something so important

@KJW_01294 the latter

@creator plan on doing the judging blinded?

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