@rjon27 Thank you much! I'll keep this great example in mind next time I try my assumptions :)

@MnM that brings me back to my original note :) Overall, I agree that A is a stronger assumption, but they could have written it better.

@MnM Alright, thank you. Though "not abandoning" might as well mean "getting away with crime" - where does it say that by the time the owners noticed... the thieves were gone with the cars. I am not convinced.

A was based on assumptions, but B offered the same weight of assumptions. The way I understood B was: car alarms deterred a number of thefts altogether (hence, the number of thefts declined), yet people ignoring those alarms enabled the completion of actual thefts. Kinda like stealing Louvre jewels in the middle of a day... Aren't those valid assumptions?

It feels that there is a thin line between "reading between the lines" and making assumptions. I wish to have a clearer understanding of how to separate the two.