Spreadsheets definitely have a lot of downsides compared to full programming languages, but there are some strong upsides. I think Guesstimate is good for rela

Spreadsheets definitely have a lot of downsides compared to full programming languages, but there are some strong upsides. I think Guesstimate is good for relatively simple models (compared to large programs) of specific things; these are intended to be very visual (so you can see how uncertainty propagates through a system) and collaborative (so people can disagree on specific estimates).