Sit down position...

[Philippus Flavius Homovallumus]

This has been mentioned before, and it is entirely unsubstantiated. We neither have evidence that Galatians rolled under the sarissae of phalangites to attack the phalanx (we don't have any information at all about how Galatians faced a phalanx) nor do we have any evidence that phalangites ever fought in any position other than standing.

Well we don't know they didn't either. Though we do know that both Hoplites and Legionaries would kneel to recieve cavalry. So it is not unreasonable.

[MeinPanzer]

Well we don't know they didn't either. Though we do know that both Hoplites and Legionaries would kneel to recieve cavalry. So it is not unreasonable.

And yet we have several detailed sources that describe the Macedonian phalanx and its operation (Polybius and Asclepiodotus being the two most important) as well as numerous descriptions of battles facing numerous different types of troops, and none of them mention anything like this. Unlike hoplites or legionaries, phalangites were restricted in the actions they could perform due to the rigid formation of their phalanx, and so it seems very doubtful that they would do so.

Plus, the claim that hoplites knelt to receive cavalry is hypothetical, and is AFAIK based solely on a handful of representations on vase paintings of kneeling hoplites, which in itself presents a number of flaws to this argument.