Progress

Reviews ahead

Islands and core deck combined. Overdue, unseen sentences, and today's new-word allowance all fold into today.

Core deck

Ear training

Self-assessment

Your own honest ratings, 0-3, recorded at phase advances and monthly check-ins. Retention says what you remember; this says what you can do.

The other engines

Coverage context

The honest yardstick (Nation 2006): 1,000 word families buys about 75-80% coverage, 2,000 makes conversation possible, 5,000 (95% coverage) is where a language becomes usable rather than studied. The core deck counts against this table directly; mature islands are production, not coverage.

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