Admiral Grace Hopper Explains the Nanosecond

Why HN readers recommended it

HN uses it to illustrate physical latency limits and why performance and distance matter in computing.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel

funbury

Topic

latency and the speed of light

Format

lecture

Level

general

HN recommenders in dataset

5

HN mentions in dataset

12

Recommendation years in dataset

2020–2025

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

• My favorite is more a small presentation than an image: Admiral Grace Hoper Explains a Nanosecond. [VIDEO] For me it changed my mind on wasting time on less efficient algorithms.

• Yes it is and no it isn't. Learn from Admiral Grace Hopper: [VIDEO] The speed of light in fiber optic cable is about 2/3 the speed of light, which is why SpaceX's Starlink will have a potential latency advantage over oceanic fiber optics. It also …

• > The nanosecond wire alone should be a compelling argument. For those that haven't seen it: [VIDEO] (Of course, I expect that most here have, but xkcd 10,000 and all that.)