High quality thinking is rare but necessary to accomplish ambitious goals. Extended periods of silence are one of the best ways to produce high quality thinking, but people are unlikely to accidentally spend even 2 minutes in silence (e.g. zero external inputs to your brain). The world is too loud. Silence needs discipline at first, but the benefits become clear quickly and a natural desire for silence emerges.
Challenge for you right now
Look at a tree for 30 minutes.
There is no goal except to not have a goal. Calculating thought gradually gives way to connecting thought. You might be surprised by how powerful your brain is when you give it time to process things in silence. Insights bubble to the surface.
“It is not necessary that you leave the house. Remain at your table and listen. Do not even listen, only wait. Do not even wait, be wholly still and alone. The world will present itself to you for its unmasking, it can do no other, in ecstasy it will writhe at your feet.” - Franz Kafka