1) What you say it true.
2) But if this was ment as a reply to me, it would be usefull for you to consider the first thing civvver said, that sparked my discussion with him.
- This is what he said:
"Getting an academy early is a fair point but I generally just wait for the academy as a bulb on epic/marathon is a much bigger return early."
3) I am questioning the idea that bulbs on epic/marathon would have a much bigger return early.
Why do I question this?
Because I see no reason why it should matter, as the relations for techs/bulbs/turns are all proportional when one compares the speeds normal and marathon.
The initial bulb is much less valuable at Marathon/Huge than standard.
The normal GS bulb is Mathematics, to do a rush, but what's the point at Marathon/Huge with standard number of civs? You can get the land just as easily by building settlers, and an early rush on
average maps will cripple your economy.
On the other hand, I don't like getting Academies either unless I can get the Great Library and/or the Pyramids. The reason is because my research slider is on the low end most of the time, thanks to the large amounts of land to settle, which you should settle, so an Academy is pretty worthless too.
At the same time, I feel like settling the GP is a waste. Most of the time you know by the time the late-classical era end whether you have a good shot at winning the game or not, and with only +6 beakers, a settled GP isn't all that great. Over the course of a thousand turns, it adds up, but if that +6 beakers makes a big difference, it means you're screwed already because you couldn't get the necessary number of cities to boost your research.
So... I tend to save the early GP for:
1. Bulb Philosophy. This is a worthwhile trade-bait tech to get. Also useful for Nationalism, which I'm beginning to like more than Liberalism. Getting the Taj and being able to draft from your many cities is better than getting a free tech. And Education for liberalism is pretty worthless if your research slider is 30% most of the time due to medieval wars and maintenance.
2. Start a Golden Age.
However, if you can get an early GREAT MERCHANT that's a different matter. With the amount of cities you're expected to get at Huge Maps, bulbing Currency is very worthwhile. So... if you're PHIL, the GLH is a very nice Wonder. But otherwise you're not going to get it in time.
In terms of Great People, Marathon/Huge favors Great Merchants over Great Scientists.
So... in summary you're both wrong!
On Marathon/Huge you have to get used to the fact that IF THINGS WENT WELL, your research slider will be low. (I.e. Things went well, THUS you have more cities. And thus, you have more maintenance, and less research).