I don't remember if this was reported before, but there are some typos in the Yor Power Matrix techs:
And here's another one in the tooltip for theHyperion Logistics System, Reduses should be Reduces.
And while I'm finding typos, here's one in the Malevolent Ideology tree:
"efficant" should be "efficient". Note also the clipping of the text that is so common.
And not a typo, but the tooltip for Barren World Mastery says Frozen instead of Barren.