one thing that always strikes me when reading accounts of the heroic age is the question of chariots.
How did the likes of Cú Chulainn, (whether or not he had seven fingers, Dennis), actually use chariots under the conditions that then obtained in Ireland? bridgeless rivers, no roads, bogs, woods, rocks, it must have been a nightmare getting one's chariot to the place of combat and how could it have bestowed a relative advantage in battle on the user?
By the way my qualification for posting in the first place (apart from good old-fashioned presumption) is that I am plodding my way through David Stifter's self-study course on Old Irish.
(by the way it's a very good course; My only beef is with the use of Greek letters in transcriptions, which I find a distracting).