To answer my own question about who's qualified for the Olympics and how they go about it:
https://en.wikipedia.org/wiki/Table_ten ... lificationTurns out there are SEPARATE qualifications for individuals, for teams and for mixed doubles. If, for a given gender, a country had qualified a team, then two of the team's members would be automatically qualified to play in the singles event.
What I was watching was the worldwide qualification event specifically for choosing men's and women's teams who hadn't yet qualified. Other teams have already qualified at continent-level tournaments - e.g. China (men's and women's) qualified at the Asian Championships, the US (men's and women's) qualified at a North America Qualification Event and Egypt (men's and women's) qualified at the African Games. Japan had automatically qualified (men's and women's teams, two each men's and women's in singles and mixed doubles) as the host nation.
From February through April there will be a series of continental qualifying events for men's and women's singles for the countries who hadn't managed to qualify a team (a couple of these actually took place already, last year), and there will be a final world qualifying tournament in May for the final two men's slots and two women's slots. It's interesting that the allocations for the continents vary between men's and women's singes - Europe was allocated one men's slot and two women's slots (both ethnic Chinese..
), while Latin America has four men's slots and three women's slots.
I wonder if it'd be worth travelling to Bangkok in April to watch the Asia qualification event.
Iskandar