Tag Archives: data

More Cowbell: Signal-to-noise

Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. SNR is defined as the ratio of signal power to the noise power, often expressed in decibels. A ratio higher than 1:1 (greater than 0 dB) indicates more signal than noise. Wikipedia

This is a scientific term that relates to how much background noise there is interfering with the data or information you are trying to receive. A simple way to think about this is having a conversation in a party. If the noise of the party is too loud, you can’t pick up the signal (what the other person is saying). There is a point at which the noise does not interfere and the signal/communication is easy to hear, then moving along the scale the noise can interfere a little or a lot.

With machines this ratio is easy to calculate. With humans it’s a lot harder. It isn’t always about the quality of the signal, it’s also about the the willingness of the receiver to receive the signal. Sometimes people are not ready to receive the signal no matter how clear it is. Sometimes people choose to listen to the noise. Sometimes the noise is in their own head, not just coming from outside.

We are currently living in a world where a large number of people pay attention to the noise and are missing the signal altogether. A world where the noise is intentionally being spread. A world where the signal is considered noise. But humans aren’t machines, and so the noise isn’t easily calibrated and removed.

Social media used to amplify the signal, now it amplifies the noise. News used to amplify the signal, now it constantly reports about the problem of the noise, thus highlighting the noise and bringing it to everyone’s attention… not always in a negative light… or putting the signal and the noise on an equal footing as if to say here are two equal signals to be weighed and considered. As a result, communities, families, and friendships are being torn apart as they argue about what is signal and what is noise.

I’m reminded of the ‘More Cowbell’ skit on Saturday Night Live.

https://vimeo.com/257364428

The noise is becoming too loud to receive the signal in any meaningful way. We need to simultaneously turn up the signal and turn down the noise. If not, we better get used to the cow bell.

Making history

We are living through one of the biggest social experiments in history. We are getting thousands of data points all over the world that show us what the Delta variant is doing…

In Florida:


And in India:

In comparison to Iceland and the UK:

The difference in deaths is directly related to the number of people in less and more vaccinated areas.

And in Mississippi and Louisiana:


Want to guess what the death rate will look like in these highly unvaccinated areas?

Where does the social experiment come in? India didn’t have ready access to vaccines, Florida, Mississippi, and Louisiana all did. Meanwhile, the Florida Governor has an order against mask mandates in schools. Over the coming months we get to see large scale data sets on how decisions like this affect the lives and deaths of people in different places. We get to see what happens when people put themselves before their communities, and what fear can do to undermine society.

Decades from now there will be case studies in textbooks that will discuss the differences in preventable deaths. There will be questions about how to prevent this in a future pandemic. There will be models to show how devastating this kind of response would be if the same pandemic response happened with a virus that is 3, 10, or 20 times more contagious and/or deadly.

The Delta variant, which is affecting younger people more indiscriminately than the original variant, is quickly becoming the great un-equalizer. It is quickly revealing how a good response to the pandemic fairs so much better than a bad response. The sad part is that it’s doing this with hospitalization and deaths.

Equally as sad is that many younger kids and immune compromised people that do not have a choice to get a vaccine will suffer because of people who are able to take an available vaccine and choose not to. The unvaccinated, that are so by choice, are creating a giant social experiment where they are playing with people’s lives, and the data that’s coming out is proving this.

The worse part is that they are basing this choice on fear and misinformation. And as a PSA, the vaccine makes us safer, not safe.

Wear a mask. Practice social distancing. Stay safe.

Data, Tales, and Tools

I love this quote by James Clear,

“The two skills of modern business: Storytelling and spreadsheets. 

Know the numbers. Craft the narrative.”

But it made me think of a third skill: understanding the technology we use.

It’s not enough to know the numbers, you have to know what to do with the numbers. It’s one thing to be able to look at an excel spreadsheet, it’s yet another to know how to use pivot tables and macros in order to make those numbers really useful to you.

It’s not enough to craft the narrative unless you know how to use the advertising, social, and search tools to deliver that message. It’s one thing to craft a narrative, it’s yet another to get that story or message to the people who need to hear it.

Too often we understand the basics of using tools, but we don’t know how to harness all the features and benefits of our tools. Excel can help manipulate and make sense of data far more than I’m capable of using this powerful tool. Zoom allows breakout rooms and surveys that most people don’t use. PowerPoint can record, and translate, and follow different paths depending on responses to questions. Twitter is more powerful if you understand hashtags. Website analytics can tell you where people are visiting your site from, what they click, and what pages they leave your site from.

Yes, we need to know the numbers, and be able to craft a narrative, but we also need to know how to harness the power of the tools we use to make sense of our numbers, and to transmit and share our narrative to its intended audience.

Data hoarders

I have thousands of photos on a computer that I can’t turn on. I have files on floppy discs. I still have tape cassettes, records, and CD’s. I have videos of my kids on digital tapes that I can only play on the camera I filmed them on, although I’m sure I can still get them on to my computer if I tried.

And I have thousands and thousands of digital photos that will never make it into a frame. They will never see ‘the light of day’, and many of them might not even be seen by me again.

Talking with my buddy, Dave Sands, he mentioned that we have become data hoarders. But unlike those TV shows about outlier people that hoard physical things and clutter their homes and lives, we are all becoming digital hoarders!

Our phones used to be fancy if they could take half-MB images and now some phones are approaching 10MB. My first computer was a Commodore Vic 20 with 20k of memory (and I was excited to buy the 16k adaptor to get me to 36k), and now I wouldn’t buy a computer with less that 350G. We used to buy 250MB backup drives, now we are buying multiple Terabyte backup drives.

But will these drives be easily retrievable in 30 years? Or will we be searching for an equivalent to a tape cassette recorder, or an 8-track player, to somehow get our data back? Or, how easy will it be for others to access this data as we share more and more of it in the cloud?

Beyond the fear of others getting access, will we even want this data? When was the last time you looked at a backup file or drive that has data you no longer have on your computer or phone?

We have become digital hoarders, all of us. What implications does this have for us, or more specifically, for our future selves?