As investors, we all look back with 20-20 vision at the excesses of the TMT bubble, incredulous we could have allowed valuations to get so far adrift of economic reality.
Markets are starting to question whether the prospect of robust - albeit unevenly distributed - growth will be disrupted by rising inflation and increasing geo-political risk.
At this stage, it remains impossible to really judge confidently the scale of the damage from the earthquake in Japan and the tsunami that followed.
The Western powers suddenly look powerless. The Arab revolts have electrified the news and shocked the markets.
Do you use conditioner? I don't. It is not really necessary with my amount of hair. What about dating agencies? Me neither. Happily married. What about apps, or a shoulder of pork?
If you have already invested for clients in an emerging markets fund, but now think a few bob in a US equities portfolio will do better this year, then stop.