Its beginning to look a bit more serious this time; booms and slumps have happened at several times in history, as have large scale wars. but there have only been two World Wars, and only one Wall Street Crash, none of which any of us less than 70 yoa have any first-hand experience.
In the first place, it becomes clear that the state of the economy is largely a matter of opinion, so try to fathom how much time we have before the slump sets in. your guess is as good as mine, or your bank managers, so read the financial press daily, and look for the signs. Rememeber, the 'Crash' was in 1929, but the 'slump' didnt really hit until about 1933. When it does hit, no part of the economy will be immune, so whever your personal wealth, or that of your friends, will be guaranteed an exemption, no matter how affluent you, or they may be at present. Money may become worthless overnight, property may be requestioned by the state, and the semi-war currently smouldering may suddenly erupt. activism will become a much more serious matter in the eyes of the state, so decide whether you want to continue, or perhaps if youre doing it for the pose, just drop the pose. try to find a job that is not excessively linked to the money-markets (thats a problem in Britain where the financial sector is about the only one that seems to carry any cache in the eyes of the public.) Think in terms of consolidating your life, and dont increase exposure by taking unecessary risk. In a phrase, if the world is heading for a 'bear-market', then consider your life as a bear-market too.