A multitude of things can be accomplished alone. Consider the Late Prince, he made a cassette tape demo that was played for an A&R, who initially thought it was a band playing; little did he know all the instruments played and vocals sung were by one person, Prince.
Can you imagine the confidence ingrained when he proved he could “do it all by myself?”
A single rod is not as strong as one thinks and can be easily snapped in two. However, once bundled with many rods together it becomes almost impossible to break them.