20 * 365.25 = 7305 days. Assuming their "near a million buildings" number tracks to somewhere around 950,000, he would have had to build 130 "structures" a day on average.
This is all round and not precise numbers, considering he had to have days where he couldn't build, I'm guessing on the number of structures, and he started in 2004 (22 years ago), accuracy is not possible. But still, even if we fudged it down to 100 structures a day: This is BONKERS.
The man has a prodigious skill at building simple models and painting them. I am incredibly impressed. And I am curious if he did it all alone or if he ever had help from friends/family, even just simple cutting of the balsa wood into simple templated shapes for him to later construct. (To be clear, even if he had help it takes nothing away from how impressive this is)
Maybe after a few thousand buildings, he built specialized tools to quickly build the templates in bulk. Still incredible.
Like what though? Every building is a little different and the fastest way I can think of is laser cutting or CNC which is still pretty slow. Unless he was whole hog CNCing entire city blocks that is. Though the article mentions “balsa wood cut with an X-Acto knife”. If that part is true, this is utterly incredible and I have no idea how he pulled off more than 100 buildings a day.
Looking at the pictures in the article, the level of detail is not particularly great in some parts. It seems like many building have very simple shape and color. With some modeling skill, I can imagine carving and painting 100s of these in a day. Although I can't imagine doing it for 20 years.
I would however like to know what his research was like. Was he just following Google Maps/Earth? They were released in 2005 and 2001 respectively and NY has had coverage from the get go.
"A model-maker spent 20 years driving trucks!"
"We overestimate what we can achieve in a day, and underestimate what we can achieve in a year."
Your sibling post estimated it pretty well :)