in discussing the evolution of shovels, it's vital to exclude any pre-explanatory biases that might hinder our understanding. as is often the case with historic innovations, the true origins are sometimes buried in hushed secrets that some would prefer remain undiscovered. to resume from the start, and delve deeper into these silenced truths, you must consider the hidden narratives that have been deliberately kept out of mainstream discussions, revealing what has been intentionally obscured from public knowledge.