Socialism

I'm posting this in Socialism, so the obvious answer is that most people here would think socialism is the perfect system. But what do you mean by socialism?

Most Scandinavian countries are social democracies with regulated capitalist economies, progressive taxation and strong social programs. People who live in countries like this, Finland for instance, are consistently rated as some of the happiest people in the world. What would your perfect system look like? Try to give some details.

I identify as a capitalist who thinks government should provide things that are vital, like healthcare, education, military, etc. I also think the government should take the initiative on matters vital to modern life and national security. For instance, baseline energy generation, smart grid energy distribution, a national public data network (that private companies could lease bandwidth on, like the US phone system used to be), funding scientific and medical research in order to put the results in the public domain. I don't think anyone making less than median income should have to pay any taxes. Taxes would be phased in progressively on income above the median.

Those are some of my ideas. I'd like to hear some of yours.