According to conspiracy theory, Is it possible that the bitcoin was created by governments to gain financial strength in the modern world?
Which conspiracy theory are you pointing out? People who know bitcoin know that it is Satoshi Nakamoto who invented bitcoin but as to his personal identity, it is still unclear until now if he is a real person or just a pseudonym which is a person behind famous digital currency called bitcoin. If it is to strengthen financial aspect of the modern world, I doubt it because until now banks and governments are still against wide adoption of bitcoin. just my opinion.
I agree. I think a government can be an entity like anyone else that has the capacity to actually create its own coin. Remember, a government has two capacities, one public and one private. In its private capacity, it can be compared to any business entity that can be a developer of cryptocurrencies as much it can also be a controller of it in its public capacity to safeguard the public. What I am point out here is that as much as private people or companies can create their own, a government can too. And mind you, it can be a more powerful developer because it has all the tools to market and make people use its coin since governments are great influencers.