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Tactically_Fat t1_jcgvy1s wrote

Reply to comment by -peas- in Open-source tool from MIT’s Senseable City Lab lets people check air quality, cheaply. by chrisdh79

> scientific accuracy

But that's, like, the only real way to know for sure. Otherwise - it's either speculation or generalization?

Accuracy, repeatability, and defensibility.

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what595654 t1_jcgzrjl wrote

Did you not read what he said? You are just looking at whether it goes up or down. Being perfectly accurate is not necessary.

Its like if you had a weight scale. If it told you, tomorrow that you gained 15.3 lbs, and you repeated... and it said 13.9 lbs... 17.6 lbs, so on. It doesnt matter the exactness. The point is, your weight went up a lot in one day. That is good enough to make decisions on. Not for scientific studies.

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