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I’m just talking about the dot com bubble!

edit: I'm dumb and can't read.

It's not just tech, there's oil, pharma, banks in there.

It depends - is it a log scale?

Interesting how few of the big ones are recent. Have mega mergers gone out of fashion?

It all happened so quickly and at such a large scale. When merged (Dec 2015), DowDuPont was the largest chemical company in the world by far. They merge to reorganize their assets, secrets, and liabilities with each other while creating a new public stock for a short amount of time. They broke up in March 2017 into 3, more product-concentrated companies. Dow, DuPont, and Corteva were the result and are still industry leaders today. In hindsight it appears DuPont and Dow split up assets and secrets in a tax-efficient/dodging way. Dow seemed to get the better deal in the end imo.

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Charts with two or three data points are either suspicious or pointless

For my data presentation it's usually only okay to start above 0 when doing so would make it hard or impossible to see necessary details in the plot.

Double Y axis jfc. You should get your ass kicked for something like that. You’re a goddamn liar if you do that.

In the first one they both can be comfortable considered "misleading". Depends on the subject matter and what information you're trying to convey.

I appreciate the warning. And it is helpful to show these to people.

Just be aware that some of these graphs DO have legitimate use cases.

Double y axis is used for things that aren't the same units. For example if you wanted to graph GDP and population over time in a country.

Sometimes a small change in a very big number is important to show. I like to use residual/difference graphs for these, but most people find that type of graph even more confusing. This is where the offset y-axis can be used legitimately.

Another one you could add to this chart is logarithmic with my graphs. Logarithmic y axis graphs are another favorite of mine, but can also be very confusing/misleading to people who are not familiar with them.

On a scale of 9.5 to 10 how annoying is that?

Vodafone royally fucked me over recently so this just makes me even more salty.

They have (and had back then even more) market leading phone services across large parts of Europe, at the time when mobile phones were becoming very common. It's was seen as an absolutely huge growth industry and carriers rather than phone makers were the ones being valued more.

Two data points don’t make a trend

I agree. That's what I meant by "change over time within A/B." If the purpose of a graph is to show whether dogs or cats are preferred, then there should be a single % of households containing [pet] axis so the magnitude of the values can be directly compared. Whereas if the purpose is to show the effect of the 2008 recession on pet ownership, it may be more appropriate to have two separate axes so the magnitude of the change in values can be compared.

What made it odd?

Maybe don’t use a Mercator projection for area comparisons in Canada: comparison of Mercator and equal area.

Everyone at AOL laughing all the way to the bank.

Giant tech bubble.

Taiwan is interesting. When I think non-American baseball, I immediately think of Central America & Japan.

Iran’s rulers claim without evidence that foreign governments are behind the unrest. acled’s data show that the movement is too broad for this to be credible. Protests have persisted for months, and reached all over the country. Although episodes of this scale do not always lead to regime change, they do tend to foreshadow even greater political turmoil. Iran has not seen the degree of unrest that often follows such protests since its revolution in 1979.

That dastardly side I don't agree with does this all the time. Good thing the side I agree with never does!