Prompt
                                        
                                            Generate a realistic portrait of John Sall, an American businessman, software engineer, and philanthropist, in a professional setting that reflects his work in statistics and software engineering, possibly incorporating elements that nod to his role in co-founding the SAS Institute and developing JMP statistical software, dressed in attire suitable for a corporate or academic environment, with a background that could suggest his connection to Cary Academy or The Nature Conservancy, in a style that conveys respect and professionalism.