Speed, conditions, insufficient life boats - human hubris.
And in Belfast they now really milk their "Titanic District." This is the location of the dry-docks where the ship was built. I saw two T-shirts that were amusing (and typical Irish humor of the area):
1) "Titanic - It Was Fine When It Left Here"
2) "TITANIC - Built By An Irishman, Sunk By An Englishman"
There is a nice memorial with just names in downtown Belfast.
Despite it's size, it's interesting to compare the Titanic to a large, modern cruise ship (like the largest - The Allure). Check on this photographic comparison. There are other, probably better, graphical comparisons on-line (like side shots).
Without cheating, and looking it up, I'm guessing one of the smoke stacks was not really needed, and only put there to make the ship look right.Here's some Titanic trivia: what was the "false funnel"?
There's a dude with some stories to tell.... surviving second officer Lightoller was one of the British civilians to make runs in his personal boat to Dunkirk in 1940 rescuing British and French soldiers from the beaches.
And the carbon in the steel made it very very brittle - hence the huge gash. I also have to say (said slightly jokingly above) that the problem with "unsinkable" ships is that we start to place too much faith in technology, or achievement or science or even faith or church or ...... As I read the stories there was an arrogance associated with every part of that ship (and in fairness with the whole passenger ship blue ribband industry) Those who fail to learn the lessons of history ......
Oh dear, another rehash of a disproved theory about the steel.
The rivets sprung, the plates came apart. The steel was fine.
Also, the Titanic was by no means a Blue Riband candidate, too slow!