For me, predictions aren't to assume who will win each event, it's more to have a discussion about the leaders in each one. Especially the sports I don't really follow, to know who are the favourites. Of course nothing ever goes to plan, that's why we love sports. I just use a good prediction as a guide.
It's funny to think back how revolutionary it was for Calgary to have speed skating at an indoor venue, but I agree this is a good solution going forward for future host cities, especially in Europe where the games are likely to be more spread out where they could find a large arena/stadium to use as a temporary venue