Things that still surprise us

As we get older, less and less things that will surprise us.
In the past, if i sent a mass email to all friends about an interesting article, majority of ppl would reply to my email with an expression, aka, "WOW", "Haha!", "Cool", stuff like that, or even just "knew it already", "not so funny"

But nowaday, only a mere number of friends responsed to the news article i sent.
I don't know if they just became indifferent to the outside world, or they don't even want to bother read email i sent unless it is labeled URGENT or IMPORTANT on subject line, or maybe they havn't even checked their emails in the past two days.

Either way, things are different once we get older. We don't feel strongly about alot of things anymore. Things are less likely writing on our faces.

Anyhow, I let you decide if this new scientific discovery worths a WOW!
http://news.independent.co.uk/uk/this_britain/article2091881.ece