Bitcoin is a very fast booming and rising currency and I have been hearing about there being a physical bitcoin I mean in the form of a metal. Now if this is possible I would like to know if bitcoin would be a generally accepted means of payment in the next years to come and what are the possibilities of other currencies meeting it( I mean in demand and supply)
Bitcoin might be a relatively acceptable means of paying for goods and services in a few years, but it will still need a lot of people to be willing to accept Bitcoin or use it in some capacity for that to be a reality. That's going to require a fair amount of growth and activity, and that's something that might not be easy unless there is some considerable demand for Bitcoin, which might be in the form of new people joining the community or just more activity from existing members.
It is unlikely other cryptos will be able to hit the same level as Bitcoin at any part of their lifespan.