I myself, don’t think we can rely on cycles anymore. Even charts are somewhat useless with central management by the master planners of the financial universe, making adjustments as they go. They are imo literally “day trading” the entire global economy.
They are never pro-acting but constantly RE-acting to various problems that keep popping up in front of them. For example, nine eleven and that 2008 meltdown FORCED them to make changes, that in turn made people and businesses make changes.