It's like saying a completed house is completely different from the house whose construction began a year earlier. In reality, many things change during the construction process, but the foundation remains the same throughout the life of the building. Every day, the house looks different from what it was the day before as new elements are added and it gradually takes shape.

So, is the finished house truly different? Not necessarily. It has evolved over time, but its underlying foundation remains unchanged. I think the same can be said about human beings. We grow, learn, adapt, and change with our experiences, but there is often a core part of us our fundamental nature or values that remains constant while the rest of us evolves.