You don’t have some fixed IQ that can never change any more than I had a fixed ability to look for a lost dog. You can get better at thinking. You can train yourself to get, pardon the term, smarter. You can learn to find “x,” whether “x” is a number, an assumption, or a new way of doing something. You can learn the sort of quiet resolve you’ll need in that awful first moment when you face a complicated problem and have no immediate idea what to do about it. You can develop the skills to sort good information from bad, to ask the “second” question that clarifies the first, and to avoid going to pieces when things don’t go according to plan. You’ll even learn to keep going in the face of failure. That’s no small thing.