The evolution of form begins with the perception of failure, but it is propagated through the language of comparatives. "Lighter", "thinner," and "cheaper" are comparative assertions of improvement, and the possibility of attaching such claims to a new product directly influences the evolution of its form. Competition is by its very nature a struggle for superiority, and thus superlative claims of "lightest," "thinnest," "cheapest" often become the ultimate goals. But the goals more often than not are incompatible. Thus, the lightest and thinnest crystal can be expected also to be the most expensive. But limits on the form of artifacts are also defined by failure, for too light and too thin a piece of crystal might hardly be usable.
We realized a few years ago that the value of switching to Slack was so obvious and the advantages so overwhelming that every business would be using Slack, or “something just like it,” within the decade. It’s validating to see you’ve come around to the same way of thinking. And even though — being honest here — it’s a little scary, we know it will bring a better future forward faster.
However, all this is harder than it looks. So, as you set out to build “something just like it,” we want to give you some friendly advice.
The most powerful way to gain insight into a system is by moving between levels of abstraction. Many designers do this instinctively. But it's easy to get stuck on the ground, experiencing concrete systems with no higher-level view. It's also easy to get stuck in the clouds, working entirely with abstract equations or aggregate statistics.
This interactive essay presents the ladder of abstraction, a technique for thinking explicitly about these levels, so a designer can move among them consciously and confidently.