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Water, an overflowing container, a dry material, and a protocol that removes songs from the playlist quite than provides them.
Alice and Bob have buckets that take a most of 4 items. They’ve a container that may maintain a most of 4 items. They determine if every track will keep on the playlist by including water from the buckets to the container. A hate vote is 4 items. Tolerate is 3. Like is 2. And love is 1.
An even bigger container prevents Alice and Bob from inferring the opposite’s preferences primarily based on water quantity.
Alice and Bob fill their buckets in response to their tastes, then in separate rooms, dump them into funnels that result in the overflow container. If there’s any overflow, the track is faraway from the playlist.
A dry material is positioned underneath the container because the indicator.
In numbers:
They’re doing a easy weighted vote. A hate vote is 4 and a love vote is 1, 5 complete. This can overflow the container and take away the track. A tolerate vote is 3, and with a love vote of 1, it totals 4 and the track stays on the record.
Shared like and love votes grow to be recognized precisely, however combos of hate, tolerate, and like votes are all the time obscured. If you wish to additionally obscure like and love mixture votes
then you can also make the container opaque and have a drain plug that may be pulled with out wanting in.
If Alice and Bob had been extra trustworthy
they may use syringes and a a lot smaller overflow container, after which merely look away in the intervening time they vote. They might additionally use a small little bit of tissue paper as an alternative of a material.
As a substitute of a dry material, you possibly can add obscurity through the use of a scale.
All water overflow is captured by one other opaque container which sits on a scale that merely lights up when there’s any weight added. Gentle on means take away from record, gentle off means it stays. They pull the plugs to empty the containers then begin once more.
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