change - a relational difference between states; Specifically between states in advance of and after some function; "he attributed the change for their relationship" If, then, There exists to get some standing difference between the one who can bear in mind a particular truth and the person who can't, https://thermal-shock-vs-thermal24578.livebloggs.com/42632881/what-does-best-practices-for-thermal-shock-testing-mean