1. Thanks! We were lucky that we dealt only with the (non-US) Asia/Pacific region, where all the tax regimes we encountered in the countries we operated were re

1. Thanks! We were lucky that we dealt only with the (non-US) Asia/Pacific region, where all the tax regimes we encountered in the countries we operated were relatively simple, mostly straight percentages. But we did have to deal with tax system transitions in a couple of countries, and it was obvious to us that tax is one of those things that was quite arbitrary, could be changed overnight (which happened in Malaysia after an election), and needed to be factored out as its own domain. As I’ve been trying to argue, there are no “perfectly spherical cows” when it comes to billing… simplifying assumptions end up killing you slowly. 2. I think it’s often young people who haven’t encountered externally-imposed, non-negotiable complexity yet. I try to take it easy on them because I suspect I might have been like that once :)