Why don’t we?
“Just to give a fun sense of how wild these years were, in brief what happens is: Pyrrhus gets hard shut out by Lysimachus’ much larger army in 286, retreating back to Epirus with his tail between his legs, but then in 282, Lysimachus gets utterly crushed and killed by Seleucis I Nicator, who is almost immediately assassinated by Ptolemy Keraunos, who had been in his army (because Ptolemy I Soter, his father, was allied with Seleucus, but almost certainly plotting against him) and Ptolemy Keraunos then seized the throne, fended off one effort by Antigonus II Gonatas to seize the throne by military force, before Ptolemy Keraunos is bulldozed and killed by an army of Gauls – some of whom are going to become the Galatians – and Antigonus is able to defeat some of those Gauls and finally, durably claim the throne in 277.Seriously, HBO – this is some Game of Thrones nonsense, but real. Why don’t we have this as a prestige miniseries?”
https://acoup.blog/2024/03/08/collections-phalanxs-twilight-legions-triumph-part-iiib-pyrrhus/