In physics, erasing information always costs energy and releases heat. In life, is letting go of the past harder than learning something new?

Options

• Forgetting, forgiving and letting go is the hardest work there is
• No — taking in new information is easy. Holding on to what matters is the real work
• The brain filters what it does not need. No reason to turn forgetting into a drama
• To let anything new in, you first have to do the painful work of clearing the old out