I think in either the first or second keynote back to when React native was announced they talked about their reasoning behind using flexbox. I think it's also

I think in either the first or second keynote back to when React native was announced they talked about their reasoning behind using flexbox. I think it's also 'the good'. They were able to use a web technology and make it work in react native just as if it's the browser, pretty impressive. If they had to come up with their own 'css' style layout api I would then have put it in 'the bad' myself.