IT IS POSSIBLE.
Given: On average, an episode of GoT costs $6m to produce.
Given: Each episode lasts 1 hour.
Given: The largest crew size per episode is 583.
Hypothesis: Production of the series can scale linearly.
The show costs $6m per hour to produce. Therefore, an entire year of content would cost $24*365*6m to produce. Equivalently, $52,560,000,000 (Fifty-two-billion five-hundred-sixty-million. (Roughly the GDP of Kenya.)
Assuming the crew would scale linearly (a non-optimal scenario), we need 583*24*365 crew members to make it happen. (5,107,080 people : roughly, the population of Finland).
Now, the fun part: WRITING. Game of Thrones has produced 4 seasons (40 hours), which have covered roughly four books totaling around 2500 pages. Therefore, the writing equates to 62.5 written pages per viewing hour.
That means, per year we need 62.5*24*365 pages written per year. (547,500 pages).
Jack Kerouac is the fastest writer I have heard about. He wrote “On the Road” in 3 weeks. On the Road is 320 pages. Ergo writing velocity of 15.2 pages per day. At that rate, we need to hire 36,000 ‘Jack Kerouacs’ per year to maintain the status quo. Most writers (ahem George RR Martin) aren’t so prolific.
BUT, this is all assuming that the production scales linearly. It would not. One one hand, the scaling of this production would yield savings: (Second-unit directors could piggy-back location shoots. ) On the other hand, the scaling of this production would necessitate an exponentially larger support/operational workforce.
So, off-hand I will posit C= pow(n, 1.01) factor in regard to the linear model. (C=FINAL cost, n= empirically modeled cost.) [Guesstimating.]) Therefore, by my calculation, to produce a continuous Game of Thrones show would take approximately:
$55B per year to produce
EMPLOYING OVER 6 MILLION PEOPLE
Which is DAMN CLOSE to the exact GDP and population of New Zealand.
No wonder they keep filming down there!