The common thread is that there doesn’t seem to have been any specific incident that pushed Newton or Churchill or Guy to sell, nor did they make any sophisticated quantitative argument (as Newton certainly could have done). Rather, many of those who emerged from the Bubble in the black appear to have shared one key reaction: what had been a dull and long-term investment had changed into something else, a speculation, a gamble. Some were able to decide when they had grown rich enough and then just walk away—from more gains, perhaps, but more risk as well.
