John.
Not always! As a designer, the very first thing I learned in college was thinking out of the box.
Many inventions that are extremely popular today came from people "off their meds".
What she's doing may sound stupid sometimes and actually obsolete because some of the concepts were tried or even used before and abandoned because they didn't work, however, she's thinking out of the box and I'm liking that. It's like a brainstorm, among several ideas that sound stupid a brilliant idea may come up. She may not have the knowledge you have (By the way the very best repairman I've ever met and You know I look forward for the day you can come here to tune up my whole collection) or the knowledge I have (decades designing appliances) but she's curious, curiosity is good. We both wouldn't have reached the excellence levels we have if we weren't curious.