If an individual can commit to exactly 100 repetitions per day, how large will his collection eventually become?
You can use Tools : Statistics : Simulation to answer similar questions. For 100 repetitions per day, you will on average arrive at 75,000 items in 15 years. However, this number will vary greatly depending on the difficulty of your material, your mnemonic skills, forgetting index, the use of postpones, etc. If you do not have SuperMemo, you can roughly estimate the number of items by assuming that you can learn 1 new item per 7-10 items repeated per day. Using this method you will expect 55,000-78,000 items memorized in 15 years. Remember, however, that the learning speed is not exactly linear and you will get better results for shorter periods and slightly worse results for longer periods.
