Modal words

Connections List
 * Reason, logic
 * Gods knowledge

https://en.wikipedia.org/wiki/Modal_logic

Neccessary - a neccessary for b means b cannot exist without a. Sort of if b then a. Sufficient - a sufficient for b means that if a, then b.

None Some All

If Iff - if and only if. Both neccessary and sufficient.

What will happen What could happen if such and such was changed What someone would decide

Impossible Possible (at the sacrifice of everything else) Tactically feasible (would not guarantee failure) This is the best option or our best guess at what will happen It will surely be, is unavoidable