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Strategies & Market Trends : 2026 TeoTwawKi ... 2032 Darkest Interregnum -- Ignore unavailable to you. Want to Upgrade?


To: Haim R. Branisteanu who wrote (177867)9/7/2021 11:32:16 AM
From: arun gera  Read Replies (2) | Respond to of 217663
 
<but not sure it stop the spreading.>

For that you have to do a mathematical series of calculation. If there are 2 people in a room and not wearing masks. One of them has covid. Let us say the infection probability is "x" which is less than 1, when they are not wearing masks. f they are both wearing masks. The infection probability is now 0.7x. Now the person who was not the initial covid carrier, say he meets 2 other friends who are not wearing masks. Then the probability of each of the friends getting covid is now x*0.7x. But if the friends are wearing mask, the probability is now 0.7x*0.7x=0.49x*x. Next degree of separation gets us to 0.7*0.7*0.7=0.343x*x*x. And the next degree of separation gets us to 0.7*0.7*0.7*0.7=0.24x*x*x*x.

See how the spread has already decreased. Why the big mystery?

-Arun