Committing money to an idea

Are you willing to commit time and money to making your ideas a reality? Most people say they'll work on their ideas later when they "have time." But, in my experience, they're usually just being noncommittal. Unless people are willing to commit money to an idea, they're prone to renege when another interesting idea comes along.

If you're unwilling to commit money to pursue an idea that you're "passionate" about, you should question whether you are being honest with yourself about how important this idea is to you.

When building functional prototypes, makers commit time and money. So, what's the appropriate analog for those with less tangible skills? If they're serious, they should contribute money while they wait for others to do their parts first, otherwise they're just hedging their bets to see what happens when the prototype is finished.