If it takes 45 minutes to roast potatoes at 400° fahrenheit, when will they be done if you cook them at room temperature?
The answer, of course, is never.
If you're writing a book, but only dedicate an hour a month to it, you might eventually be able to complete your manuscript. It'll just take years.
But if you're trying to fly a plane and go down the runway at 30mph, you won't be flying to your destination — you'll be driving. No matter how long the runway is.
Some things just take a certain level of commitment to take off. Without it, they'll simply languish in perpetuity.
And those potatoes certainly aren't going to roast themselves.