That's fascinating. I googled a little and found [1], which speaks highly of Trapeze. It even says that modern spreadsheets still haven't caught up to it. I'd

That's fascinating. I googled a little and found [1], which speaks highly of Trapeze. It even says that modern spreadsheets still haven't caught up to it. I'd heard of Improv, but not Trapeze. It sounds like you were earlier. Did you see a lot of similarity when Improv (and later Quantrix) came out? Also, why do you think that Excel users, even sophisticated ones, tend to stick to Excel instead of using higher-level modeling tools? Is it simply that Excel is entrenched, or are there conceptual reasons? [1] http://basalgangster.macgui.com/RetroMacComputing/The_Long_View/Entries/2011/3/26_Trapeze.html http://basalgangster.macgui.com/RetroMacComputing/The_Long_V...