Caution is good and is IMO better than optimism especially if that optimism is misplaced or unfounded
But I would say that fear is never good especially when that fear is misplaced or unfounded
History is a great teacher and while never showing us the future it does show a patter to human behaviour. Let us look at past "crashes" since this is what you are talking about
Tulip Mania 1590's South Sea Bubble 1710-1720 The Great Depression 1929-1930 The Great Crash October 19th 1987 Asian Crash late 1990's-2000 Dot Com Crash 2000-2002 GFC Credit Crunch 2007-2009
The undeniable fact is that we will definately have another crash
Just like a forest fire is needed to purge and replenish the forrest so too in a way a market crash is required to purge the investment markets
IMO we wont see a crash because firstly its too soon and secondly the US Fed is providing a backstop or support level to the markets
So my conclusion is be cautious perhaps extra cautious as all this easy money printing will end in tears
