So I did a first pass on the Tech Tree.
1) Added a "Research Time" column
2) Adjusted some text and the teirs to reflect new teirs, and adjusted research points
I didn't re-juggle any of the existing techs that were split up into leaf nodes yet
Visual annoyances (I'm terrible at wiki markup!)
1) Feels a bit annoying how the "teir" number feels too close to the Category column especially for longer names like "Production" or "Exploration". Maybe a bigger column or center the tier?
2) The column name "Research Time" feels clunky given the columns spacing. Maybe just "Time"?