Can you drive to the Grand Canyon at an average speed of 130 miles per hour and not fall in?
Yes, but why would you want to?
The PROBLEM is that the only people who seem to want grain to glass in a week are NOOBS, and people who should know better, but have suddenly decided to brew something for their buddy's wedding next week.
Noobs do NOT have the process down. Their beer will be SO much better at 4 weeks, that it is a crying shame to drink it at 1 week.
With 2 gallons of yeast, you can probably be grain to glass in 2 days!!!!! WHY NOT?????
Because budweiser is cheap, and it will taste better, and you will have it faster.
This is not some sort of Olympic event or drag race.
This is good people who like to create and like good beer, making beer.
If you don't have PATIENCE, then don't brew. It will stress you out.