all are waste of time and energy. go with the asset allocation you are comfortable with and adjust accordingly when market turns. I suggest everyone go with bogleheads.org. people there went through dotcom bust, subprime crisis, covid-19 so 20 year track record. beats 80+% of the folks here.
视频开头有我的微信,想加入我们群的朋友可以加我微信。