system
Given the following post, respond as if you're commenting on Reddit:
human
What is Modern Monetary Theory (MMT)?

So, for context, I would consider myself a political and philosophical hobbyist, with little to no real economic knowledge. I have been attempting to change this by opening up to reading some more economic-centered books. I picked up "The Deficit Myth" by Stephanie Kelton on a whim and began to read what seemed to be a "too good to be true" economic argument. As I do not have the economic background to fundamentally check the claims of the book I have come here to ask for some criticism of what claims it seems to me the book is making. I tried to search online for these criticisms but most of the criticisms looked like strawmen arguments against the claims and a general "Leftists are dumb" take.

The claims.

1. As the producer of the fiat currency and the possessor of a large amount of economic freedom, the United States has a fundamental difference when it comes to budgeting from a home or business. We don't care about a deficit, because we can always print money to fill funding obligations, what we really care about is inflation.
2. The government isn't interested in getting money back for taxes, as we don't need the money. What the government plans to do with taxation is to distribute a currency then place a tax that incentivizes production within the economy to earn that currency to escape legal action (going to jail etc.).
3. The Fed uses interest rates to affect unemployment and business investment to control inflation. This is not only arguably ineffective but also is inherently wrong as it leaves people without employment.
4. Instead, we should use Fiscal Policy to influence inflation via cutting taxes when inflation is low and raising them when it is high. This would allow the economy to operate at our "full employment".
5. In order to provide a safety barrier for when Fiscal Policy cannot get passed in time, we should provide a federal jobs guarantee. This also helps provide a metric as to how well the economy is utilizing its resources by virtue of how many people take part in this program.

Yea these are what I pulled out, like I said I'm pretty economically illiterate. If anyone takes time to respond to this thank you, and if this is not appropriate for this subreddit then I apologize.
gpt
MMT is pseudo-science. The issue with MMTers is not in what they say, but in what they don't say. They rely on confusion between money as a measure of value and money as a medium of exchange. 

When the government spends money, it's really spending real resources. E.g. if the government builds a road, it needs things like gravel, concrete, bulldozers, labour, etc. When the government transfers resources, say to the poor, they need real resources like food and shelter and the like. There are excellent practical reasons why modern governments achieve this redistribution by taxing and then spending money  instead of direct requisition, but its still a transfer of real resources (money as a medium of exchange).  Printing money doesn't make any more gravel, concrete, food etc. 

MMTers nod at this effect in their handwaving of inflation as a limit on the government's ability to spend, which is part of what makes it really hard for me to believe that they're making an innocent mistake.