There is no doubt that TB is worth a few £B. The few people I know and have known who are worth a even few million don't know on a regular basis. Even most businesses I have been involved with only have monthly, quarterly overviews and, once a year, a stab at an annual position and a lot of...
I can guarantee that TB wouldn't know, it would change so much weekly, daily and hourly to such an extent. He could probably take an educated guess, give or take 20%.
In fact, if you have one or more properties, a few accounts, pension schemes and some investments, I suspect it would probably...