MICAH STEPHENS
Zero-Latency Is a Myth
Latency is the time delay between when data (your live video stream) is sent and when a response is completed. The best way I describe it is the “lag” you notice online.
The video feed must hop through capture, transmission, routing, processing, and decoding on multiple devices; each step adds a bit of delay, so some latency is unavoidable.
How Much Latency Do You Really Need?
The real game is minimization, not elimination. I understand the appeal, but your keynote audience doesn’t need Formula-1 reaction times. My rule of thumb is the more interactive (or financially consequential) the experience, the lower the latency must be. For a 5,000-viewer conference, shaving below 2 s often costs more in complexity and CDN egress than it returns in UX.
Higher bit-rates, better redundancy, multi-CDN failover all improve perceived quality more than shaving an extra 300 ms that no one notices.
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