Dedicated, diligent employees are essential for any workplace, but often the working culture of companies asks for more — boards and management want the employees to become workaholic, singularly obsessed with achieving the company’s mission. Recently, Blake Robbins, an associate at the venture capital firm Ludlow, gave voice to such experiences, daring to challenge the culture of workaholism that pervades the startup world. His tweet unleashed a hot discussion on the web.