Does SuperMemo improve short-term memory or long-term memory?
SuperMemo builds up long-term memory but helps you increase your mnemonic skills that will result in the impression that your short-term memory works better. You can also look at this like that: SuperMemo loads knowledge to short-term memory and this is transferred to long-term memory. The effect on long-term memory is stable but the speed of putting things into short-term memory may increase due to training. Short-term memory improvement comes slowly with training, but long-term memory build-up comes immediately upon employing SuperMemo!