In 2015 it had been determined that Boston was going to make a bid to host the olympics in 2024. What took place was a grassroots campaign and clear heads that stopped the process. While some of the development would have been cool to see, I'm incredibly grateful we didn't go down that path
I was still living in Boston in 2015, and I happy to see my city put a stop to that. We still have collective PTSD from the Big Dig, and we can identify a "over-promises and under-delivers" from a mile away.
Even beyond a general hosting the Olympics more often than not is a bad idea, as I vaguely recall there was a bunch of particular screwiness related to the planned Boston bid as it related to the Olympic village among other things.
Calling the big dig ptsd is delusional. The big dig probably increased real estate values in the tens of billions. Not to mention the health aspects of less pollution from cars and all the new businesses/restaurants created.
Giving the big dig credit for an economic revitalization that happened to damn near every city over the same time period is disingenuous at best.
Money spent ensuring that some jerk in his apartment downtown didn't have to look at a highway is money not spent improving the T or fixing other highway problem points for a sum total of the same or better economic effect.
Making transit options not suck increase property values regardless of how you make them. It's the results that matter. Green Monster V2 that yielded the same transit times between various points would have had the same economic effect.
And this ignores the fact that the state let all sorts of infrastructure go into disrepair over the course of the project and we're still digging out of that hole.
I'm not an urban planner but it's hard to separate effects.
You also have the ongoing Seaport buildout and, as you say, Boston (and Cambridge) was well-positioned in any case to take advantage of technology/science industries and many educated young professionals moving back into cities. (The Cambridge biotech/pharma buildout had very little to do with the Big Dig for example.)
On the other hand, the Big Dig did improve downtown and airport access in various ways so I'm not sure the degree to which the Seaport expansion would have been possible without fairly large-scale road work. (And, yes, the public transit infrastructure done to service the area is sub-optimal.)
PTSD is hyperbolic obviously. But it was pretty bad to live through and I didn't even live in the city. And it was hugely over budget and schedule. Fortunately, thanks to Tip O'Neill the rest of the country at least paid most of the bill. Thanks for that!
But, at the end of the day, it was a huge improvement for Boston even if traffic is still mostly pretty bad. Just getting rid of the elevated highway to reconnect downtown to the North End is a big improvement for the city--as is airport access which was pretty ridiculous before.
Fortunately it's getting harder and harder for the olympics and the world cup to find hosts. One can only hope that this trend will expand beyond these two most egregious locusts.