At first, I have to admit that the topic name/subject "2009" is not fully true or is true only just a little bit as well as any other year (for example "2025" or "1981" or "2104"). The only excuse for using just this topic name is that we are in the Bitcoin forum and for Bitcoin it is very suitable and hopefully attracts some attention, more attention than for example "Looking for the roots of opportunity" or "The nests of black swans" - that are probably more accurate labels for the problem I will focus.

Having read the bitcointalk we have frequently met the nostalgic opinions that the first bitcoiners were not equal position relative to the followers. Other argue against them saying that we all were in equal starting point and joining the Bitcoin journey sooner or later was fully up to you (everyone had the equal chance to obtain BTCs with cheap prices). Before deciding one or other, lets trying to imagine the year 2009 in Bitcoin context. Only extremely few (probably less than thousand? persons all over the world that means 0.00001%) had heart about Bitcoin and if they try to talk about it to others then 99% did not want to listen them and were fully aware that Bitcoin is a scam, a ponzi-scheme, a lie, a (bad) joke... certainly nothing important, certainly not having investment potential ("even if it could have some usefulness in the distant future, everybody can just copy it").
Opinion 1 (or hypothesis 1): "About 99% people just follow the crowd and the leaders ("The Times", the president and so on): they have ayes and ears but nothing more". I suggest that it is so not only in Bitcoin context but in any other context as well. And not only in 2009 but in any other year as well. And in 2025 just as well as in 2009. (If I am right, it makes me sad, but I believe the situation changes in the future).

The reason why everybody was against Bitcoin in the first year(s) was not the thinking process but just the fact that OTHERS were against Bitcoin as well.
The reason why many of us is with Bitcoin in 2025 is the same.

Hypothesis 2: The Bitcoin in 2009 was (subjectively) not the same as Bitcoin in 2025. It was not even similar to it. The Bitcoin in 2009 rather resembles the shittiest shitcoin in 2025".