The discussion centers around the need for a reader that can display complex mathematical formulas clearly, specifically the expression "x\left(\Psi^{*}\frac{\partial\Psi}{\partial x}-\frac{\partial\Psi^{*}}{\partial x}\Psi \right)\right|^{+\infty}_{-\infty} = 0." It highlights the importance of properly formed markup for rendering equations, noting that mismatched tags can prevent correct display. A solution is provided, indicating that with JavaScript enabled, browsers should automatically render the expression if the markup is correct. Additionally, a resource is recommended for creating LaTeX formulas: the Codecogs equation editor. The discussion also advises against reviving old threads for unrelated questions, emphasizing the importance of maintaining topic relevance in forum discussions.