Usar "changeability" en una oración

1. The one rests its case upon the unchangeability of their understanding of their truths, the other seems wired into the continuing changeability of circumstance

2. But given the changeability of man, my once inimical cousin’s spouse, who had professed his support for me, failed to further my career when he was in a position to do so

3. The basic thing to keep in mind is that the changeability of this content makes it relevant to very short-term (days, not weeks) crowd behavior and thus is of limited use for gauging information cascades