> The only way you can have new features every X weeks, is if those features take no more than X weeks to develop.

You can still have releases every 2 weeks, where each feature takes 1-2 months, if you have multiple small teams each working on a different feature at the same time. That is how we do it.

But of course, it's typical that each feature takes an extra 1-2 weeks of development time and many times other devs are pulled off their own projects to help out, so then those other projects are even more delayed.