Neo takes advantage of the _SharedWorker_ feature supported by most browsers
(including Chrome, Firefox, Edge, and Safari). <small><sup>*</sup></small>

A shared worker is a special web worker that can be access by multiple browsing windows. 

Neo.mjs has the advantage of representing dom content via its vdom &mdash; that vdom hierarchy can be 
trivially mounted in any container, even the shared window's viewport. 

<br><br><br>
<small>* <a href="https://developer.mozilla.org/en-US/docs/Web/API/SharedWorker" target="_blank">SharedWorker documentation</a></small>