<human>: Give me the gist of the text in a nutshell

First, best wishes to all the people who had to suffer through this and will continue to suffer in the future. Hope they can rebuild at least some part of what they've lost.

My reasoning is as follows:

The massive rebuilding of Europe after World War II helped fuel the go-go years of the 1950s, both in Europe and in America, which benefited due to the [Marshall Plan] and exports to a growing Europe. Similarly, Japan will need to undertake a large scale rebuilding effort to rebuild their infrastructure following this quake.  Unlike Haiti, which still needs millions in foreign aid and is incredibly dysfunctional, particularly when it comes to governance and planning, Japan is highly organized and could very well handle the entire recovery and rebuilding effort on their own if they wanted to.  Of course, aid donations are always welcome (well usually..see the 1,500 doctors Cuba offered the US after Katrina), and certainly nobody wants to see a friend like Japan suffer, and in the immediate aftermath any and all aid is crucial.  In the medium and long term though, I'd imagine that this rebuilding effort will require huge sums of money from the public and private sectors--spending on the terms that the Japanese people have been loathe to do over the past two decades, which as a result have resulted in deflation in some years (some savings accounts offered annual rates as low as 0.01%).  Now people and companies will have to rebuild, something that will require *someone* to open their pocketbook.  But essentially, Japan (presumably has enough money to handle all the rebuilding efforts themselves).  Of course, I could be missing some major pieces here, and 1950s Europe is not the 20teens.
<bot>: Japan has had a near-stagnant economy for almost 20 years.  The savings accumulated during that time could cause the economy to roar soon due to the rebuilding effort.