the present is not as good as (/not comparable to) the past; longing for good old days
❍ 谁说～？ 简直是胡说八道！ Who said the present is worse than the past? It’s sheer nonsense!
今不如昔jin bu ru xi
the present is inferior to the past
今不如昔jīn bù rú xī
现在不如过去了。be worse off than before, longing for good old days