> You can then switch back and forth between an online marketplace and a streaming service without losing the state of your chat window. On the other hand, if

> You can then switch back and forth between an online marketplace and a streaming service without losing the state of your chat window. On the other hand, if you built these things with lighter-weight techniques, these separate parts of the application could be opened in separate browser tabs or windows (without your computer grinding to a halt from loading multiple instances of a gigantic SPA.)