January 1922, Albert Einstein was engaged in the defense of an idea he was sure would determine the nature of light in quantum mechanics. Many colleagues challenged his work. Einstein grappled with their criticism, acknowledged his mistakes and eventually referred to his work from that period as "a monumental blunder".
For more detail on the above, click on this link to see the thread in our Twitter profile. In it, we include specific references to documents in the Digital Einstein Papers.
Why highlight one of Einstein's blunders on the project home page? It's a matter of perspective. One cannot know one is wrong, or what can be right if one does not try. Let us hope that in 2022: we can explore our options, discuss our ideas with trusted friends and colleagues, and forge ahead to whatever is next. We all make mistakes. As Einstein wrote to Max Born later on, in May of 1922: "Only death can keep one safe from blundering."