Many triggered effects (and some main ones) do not show up in the log. For example, corporations that gain income or MC when certain tags are played. There's no indication that this happened other than watching someone's stats increase. This makes it easy to forget about such effects.
Similarly, there's no log indication for cards that increase income via a formula what the result of a formula was. Thus, a large increase can go unnoticed.
A "Verbose" log option which put all this stuff in the log would help visibility of game state (and particularly of changes to game state) a great deal. Ideally this would be always stored and a toggle, so that turning it on shows all past info.
As for what's shown in the UI, I would start by saying it should be complete, and there only needs to be a verbose toggle if anyone complains that it's too much information.
And maybe no one WILL even complain, if the information is presented in a nice way. here was a discord conversation from last week.

That looks really good!
I think the approach of showing the delta is a great idea. The user can see what has changed and users who want to be able to see what the state of the game was at a certain point could rely on the delta and calculate the state versus requiring the entire state.
I still want to reorganize this pile of interrelated issues and figure out which existing issue will serve as which.
Actually maybe the either/or in the second bullet would each be their own bugs too.
I would really love seeing an explanation for what actually happened in the Turmoil phase!
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1110 had forked into a few related topics. It started with the idea of a game log being downloadable, which led to the idea that that game log should be complete. Complete should mean you could write a program to calculate everyone's ending inventory etc. based on the log file alone.
As for what's shown in the UI, I would start by saying it should be complete, and there only needs to be a verbose toggle if anyone complains that it's too much information.
And maybe no one WILL even complain, if the information is presented in a nice way. here was a discord conversation from last week.