For example, ThirdLove introduced its strapless bra in 2015, but soon discontinued it because there were still fundamental design flaws. (inc.com)
With regard to the Kindle, it, like all e-readers currently available, has a number of fundamental design flaws: it does not look, feel, or work like a book. (blog.smashwords.com)
On the one hand designers are optimistic that, as a species, we'll rise to the occasion and see that we have a fundamental design flaw: We don't recognize that our processes could integrate with natural systems in delightful ways instead of destructive ways. (discovermagazine.com)