> Front-loading explicit study of grammar is a total waste of time.
I completely disagree, partly because studying grammar is an effective shortcut to making input more comprehensible. If I memorise the verb conjugations for Spanish verbs, for example, I now understand more information about every sentence (e.g. omitted verb subjects and tense/mood information). It will still be necessary to listen and read extensively in order to internalise the formation and meaning of the verb forms, but it skips a lengthy process of reverse engineering. Ditto for producing your own sentences, which I think is also fundamentally important for learning a language.
> Memorizing atomized vocabulary words is also relatively ineffective.
This is absolutely true; when using flashcards or spaced repetition, it is vastly better to have a full sentence with the target word blanked out compared to only having the definition.
I completely disagree, partly because studying grammar is an effective shortcut to making input more comprehensible. If I memorise the verb conjugations for Spanish verbs, for example, I now understand more information about every sentence (e.g. omitted verb subjects and tense/mood information). It will still be necessary to listen and read extensively in order to internalise the formation and meaning of the verb forms, but it skips a lengthy process of reverse engineering. Ditto for producing your own sentences, which I think is also fundamentally important for learning a language.
> Memorizing atomized vocabulary words is also relatively ineffective.
This is absolutely true; when using flashcards or spaced repetition, it is vastly better to have a full sentence with the target word blanked out compared to only having the definition.