Neat. It&#x27;s disappointing how TCP congestion control is one of the main limiting factors of modern broadband connections. Even downloading from S3 or something it takes up to a minute before TCP discovers the link bandwidth, when the transfer could have been finished in seconds if it was more aggressive. There doesn&#x27;t seem to be much practical development in the area either. Is congestion collapse still a concern in today&#x27;s internet?