I was watching a bruce lee documentary and it mentioned the philosophies of his jeet kun do martial arts aka the way of intercepting fists. They sounded very similar to DG9J which may indicate that Jin Yong might have gotten his inspiration from Bruce Lee in creating this martial art.
Also , he tend to create martial art of nature that matches his protagonist's character.
Like Dragon palm , straight to the face , simple no nonsense or flowery moves to straight forward people like xiao feng and guo jing.
DG9J to match LHC who is free spirited , not constrained to a set of social norms
Taiji ,9 yang and QKDNY for peace loving zhang wu ji , non aggressive , offensive set of martial arts.
Anyone has similar thoughts?