80/20 Principle and Learning

Photo credit: Dmitry Ratushny

Most English speakers use roughly 1,000 of the 250,000 English words in the dictionary. Knowing that a tiny fraction of words will immediately allow you to have functional fluency makes learning English less daunting.

Here are a couple of other examples:

• Learning to play just four chords on the guitar or piano will allow you to play hundreds of songs
• Of the thousands of exercises and fitness routines, pushing, pulling, and squatting your body weight a few days per week will allow you to strengthen your body and gain muscle/lose fat faster.

What are the few most critical things you can learn/develop to leverage 80% of the results you seek?