GAMER LOUNGE 20XX (NO CASUALS!!)

[Lemonray]

True, Meowth is exceptional and seems to have an x factor seperating him from regular pokémon, in addition to him being highly motivated when he was learning to humainze himself. So perhaps simply having the potential to produce the correct sounds or words isn't enough, and a certain level of intelligence/comprehension is required in addition to practice and discipline? The one talking Slowking could be an example of this as he was capable of non-telepathic speech like Meowth.