One thing that I just thought of for the Spectrum of Support lesson that I want to write down to see if it makes any sense is in some instances to think of the Spectrum of Support as percentages. For example, the conclusion of the Disney argument flows logically from the premises 100% of the time making it a strong or in this case valid argument. In contrast, if the premises only make the conclusion likely (say, 70-80% true) as in the case with the Tigers argument, the argument is still strong, just not entirely valid.

I just wrote this in my notes: "Whether an argument is weak or strong is determined by how well the premises support the conclusion."