Every single big thing started as a small thing. Every single one. Google was once just an algorithm and some math. Slack was a chat app some game devs built to talk to each other.

The Path Appears To Those Who Walk.

If I understood correctly, you're saying starting small is best because things that may seem small may actually be a thread to something big .. even if it isn't obvious .. but the habit of starting things will be the truest test .. this is a good one.