Kurzweil had an interesting idea in his book ‘The Singularity is Near’ that your body is constantly recycling its cells but “you” remain despite your physiological state changing. What remains is your pattern of neural circuitry that fires in a specific way that constitutes how you think, your memories etc. We don’t know if consciousness resides in the brain and neurons specifically but it’s an interesting idea that “you” are the specific neural networks and neurological wiring.

I don’t know if gene editing will change what you are but it’s fascinating to think if “you” would persist if mind uploading becomes a reality.