Intelligence is hard to define, let alone measure.
Even if some nootropic showed an increase in long-term memory, I would be concerned that might involve a decrase in some other more important cognitive quality, such as creativity.
Memory is important only to a degree. I most value creativity, short term working memory, and focus. The latter is often the most important for success, and mood/​motivation is thus critical.
Tradeoffs do exist, but most forms of self-improvement really are just improvement, not tradeoff-adjustments, and assuming otherwise would cause you to miss opportunities. Beware of putting obstacles in the way of things you should do; deciding you need a creativity test before you work on improving your memory is more likely to drive you to inaction and loss of benefits than to lead to an actual test.
Intelligence is hard to define, let alone measure.
Even if some nootropic showed an increase in long-term memory, I would be concerned that might involve a decrase in some other more important cognitive quality, such as creativity.
Memory is important only to a degree. I most value creativity, short term working memory, and focus. The latter is often the most important for success, and mood/​motivation is thus critical.
IQ and working memory are good enough approximations most of the time.
Tradeoffs do exist, but most forms of self-improvement really are just improvement, not tradeoff-adjustments, and assuming otherwise would cause you to miss opportunities. Beware of putting obstacles in the way of things you should do; deciding you need a creativity test before you work on improving your memory is more likely to drive you to inaction and loss of benefits than to lead to an actual test.