math(s) -- resource(s) / perspective(s) / method(s) / graph(s)

_ .. / ... / common(s) / idea(s) / change(s) / topic(s) / _ / .

scenario(s) / a (wide) variety of perspective(s)

tool(s) / classic(s) / statement(s) / opinion(s)


/ flow(s) / dynamic(s) / particle(s) / game(s) / screen(s) / cycle(s)