Why Titanic hit the iceberg?

Okay this is our 1st question given by our lecturer (actually this is the 2nd one but I want to publish this first ~ =3=). We're asked that why Titanic hit the iceberg ~ Since this subject is called "Creative Studies" so I wonder that the is lecturer expecting us to give a creative reason or a somehow realistic reason? ==
But since the lecturer is asking for our opinions and said that need to be reasoning so I think it'll be okay ~ =D. So basically I have come out with some thinking ~

 For me, I think that the Titanic will hit the iceberg is because
1. The technology for that time is not good enough to do a good detection for obstacles. Besides, since it travelled in a long time, maybe the machines are overheated so it can't function as usual.

2. Since Titanic is a long journey cruise ship and the captain is a human-being as well. So it may be just because of the lack of rest of the captain. The captain is too tired until he didn't even notice that there is a big iceberg.

So far that is all I thought is reasonable for why Titanic hit the iceberg based on my opinion. Thank you ~ =D

image source : http://leveragehr.com/wp-content/uploads/2012/09/Iceberg1.jpg