If it took 8 men 10 hours to build a wall, how long would it take 4 men to build it?

Well, that depends on the men building it. 1 trump can't build a wall, I doubt 8 could even start, so 4 would take eternity.

Ideally 20, but in reality each person is not doing identical work, They might have formed a chain with each person doing 1 step. So, 4 men might be more inefficient and take much longer than 20.

Also, more people means more politics, so, it might take even less.

Also, if it only requires 4 men, then, in those 8 men, 4 are extra and are not adding to productivity, so, It might take same amount of time.

They won't get the wall built at all because the four fired men were the actual workers. Now you're left with a finance clerk, a project manager, an HR drone, and the CEO.

~7. There are 3 people working and another 1 reviewing all the wall merges and seams. However, that reviewer is holding everyone back, because some seams seem too loose or with off pattern and the 3 have to fine-tune all their work according to the comments, and to work on merging the separately built segments [also solving all the occurring conflicts. All off them - not just wall-related].

It's naive to expect 4x less time, because higher concurrency introduces more synchronization and more context switches. So I guess it would take 7-ish hours. Similar case to 3 workers. Whereas 2 workers might be more efficient

@theabbie it will take 0 hours because it's alredy build😂😂