Does gatsby support content splitting?

[kunxi]

I found the example site is lightening fast, and also found no data is fetched during the navigation. Out of curiosity, I dig into the public folder, found all content are bundled in the bundle.js. That is a pretty interesting approach, but should we limit the payload for the first load for better user experience?

So I wonder whether gatsby can just load minimum required assets in the first load, and load other contents on demand?

[KyleAMathews]

This is coming in 1.0! #431