where did this "4 percent growth" that everyone has been talking about happen exactly in the U.S. Economy?

You might be correct in your ambit because it is very hard to find work. The most small businesses have been collapsed. but the 4% growth is there, and based on the lated prediction it would be 6.5% in 2021. And investors believe this prediction to become true. They are buying 10 year bonds day and night. The stock buying back is coming into an end. The consumptions are going up. So is the investment. The most worrying is in the labor markets. People who left jobs to take care their kids will not be able to come back. And the most worrying of the nation is a huge mountain of public debts. What are we going to do about it?

It happened because grade school arithmetic tells us 4% coming off the bottom of the barrel is easy.  The 4% is hard when the barrel is full.  They are buying stock because that is the direction the train is moving and they don't want to get left behind.

Seems like the entire economy is set for one massive dead cat bounce. 

Obviously there is variation in the economy, and some sectors are doing better than others. 

4% GDP growth means that the gainers are far outpacing the losers. 

Vaccines had a lot to do with it and personal consumption.  Within a few more months I believe we'll see an entrepreneurial explosion.  If the government in the USA would step aside so the people can do their thing, we will be okay.  We would have done better under President Trump, but even the Democrats have caused the people to work harder time and time again.  In America, freedom is precious to us and we give our Lord Jesus the praise for our blessings.

Why don't you ask "everyone" instead of bothering us if you can't be troubled to provide any links or even hints?

Pharmaceutical Companies! That is where the smart money is going. Mandate vaccines and Vaccine ID's - money to be made!

There was a net gain of 400,000 jobs in February, dummy.