Mind extensions

To consider if our small brains can really answer all conceivable questions and understand all problems, we have to understand the human's ability to make tools.

• Our sense organs cannot detect UV-light, ultrasound waves, X-rays, or gravitational waves. But we can equip ourselves with technology to detect all those things.
• We use physical objects such as pen and paper, to increase the memory capacity in the form of notebooks or file drawers.
• Mathematics enables us to represent concepts that we couldn't think of with our bare brains. Mathematical models and computers do the heavy lifting for us.