A simple, but still difficult and effective, way of making a change is to donate to effective altruism -- a movement that looks at the quality and cost-effectiveness of charities and only distributes money where it is most needed/can do most good.you can be part of the change by doing sa simple thing. like feed the hungry one or give your extra food to the needy.,donate your excess dress or old dress to the needy pr in tje orphanage where there is needed a dress to wear.  when you help one person you are part of the change in this wold.I think that when people talk about changes in themselves, they mean the improvement of themselves, the development...in this case I agree...it is good, when you are looking for opportunities to become a professional, and not for justifications, why this is not possible to happen.Most people on this forum are users of bitcoin. This means that each of us involved in the changes in the world. After the emergence of bitcoins, the world will never be the same as it was before. We are all involved, but do not completely understand the historical significance of this moment.