# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2018-07-06 08:16:40 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/1015147506475458562) In reply to: [@andiih](http://twitter.com/andiih/status/1015125013790380032) @andiih Also, because the iPhone, there were many expert Objective-C developers, plus those who had deep C knowledge that they could build on.