@rpeden: Thanks a lot for such detailed explanation! This is exactly what I wanted. I didn't even think that when I hover on 'Start' each box will have to come back with different velocities! Stupid me :P
And I really liked the idea of not putting a codepen -'think you know what's going on without really understanding it' - I totally agree and that has been happening quite a lot to me!
Just one more question - if I may! In the 'Connections' page, the graph looks a lot like D3js interactive 'Chord Diagram'. But I don't see d3js mentioned in <script> tags. Is this due to the webpack that it's possible to hide the underlying dependencies? I'm sorry if this is a dumb question - I've never used webpack.