Modern Degrees of Spreadsheet Competence

• 0. WYSIWYG features : pivot tables, charts, filters
• 1. bult-in in-cell formulae, without array syntax, e.g. {x,y;x1,y1}
• 2. built-in in-cell formulae, with array syntax 
• 3. modern ( Google Sheets only ) SQL programming in-cell formulae, with query()
• 4. modern ( post 2010 ) generally programming in-cell formulae, with lambda() and let()
• 5. scripting ( ex-cell ... lol ... programming )