Now, either we're all just becoming really grumpy as we get older, or it may mean that as you understand laughter better, and you are getting better at doing that, you need more than just hearing people laugh to want to laugh.
Ehkä meistä tulee  todella happamia vanhetessamme, tai ehkä vain oppii ymmärtämään naurua, ja kun oppii siinä paremmaksi, tarvitsee muutakin kuin naurua, jotta haluttaisi nauraa.