Scepticism refers to a doubtful or questioning attitude towards something, often involving an inclination to disbelieve or be unconvinced about its truth, validity, or reliability. It is typically characterized by a lack of trust in the information presented and may involve doubts about the veracity of claims, the motives behind them, or the evidence supporting them. Scepticism can take many forms, from healthy questioning and critical thinking to outright disbelief and cynicism. It is often an essential part of the scientific method, where theories are tested through experimentation and observation in order to establish their validity. However, when taken too far or applied indiscriminately, scepticism can hinder progress and prevent new ideas from being considered on their merits.