What is a good yield?

Good day, fellow investor. I'm curious, could you elaborate on what exactly constitutes a "good yield" in the realm of cryptocurrency and finance? Is it simply a matter of comparing percentages among various investment opportunities? Or does it involve a deeper analysis of risk-to-reward ratios, market trends, and the potential for long-term growth? I'm eager to gain a clearer understanding of how one might assess the attractiveness of a given yield in this dynamic and rapidly evolving landscape.