Realization

思考は現実化する。

変わらないと思っているから変わらない（例：江戸時代前半から中盤くらい）。
変えようと思っているから変わる（例：幕末やフランス革命期）。

現実化：REALIZATION

Realization (also Realisation)　noun
1 [U, sing.] ~ (that …)| ~ (of sth) the process of becoming aware of sth
2 [U] ~ (of sth) the process of achieving a particular aim, etc
3 [U] ~ of your assets (formal) the act of selling sth that you own, such as property, in order to get the money that you need for sth
4 [U, C] ~ (of sth) (formal) the act of producing a sound, play, design, etc.; or the sing that is produced
(OXFORD Advanced Learner’s DICTIONARY, 6TH EDITION)

THE BIG ELEPHANT IS ABOUT TO MOVE !