The sudden appearance — and the equally sudden disappearance — of a middle-aged woman named Eli Kaizer, who claimed to be a time traveller, has caught the attention of not only our city, but the entire world.

If you are fairly active on Facebook, you might have noticed a new trend that goes by #Howmuchyouvechangedchallenge or 2011 vs 2021. The rules are very simple. You open your profile pics, choose your first solo profile pic, choose your last solo profile pic and post them side by side so everyone can see how much you have changed over the years.

Time travel, this fascinating concept of - moving between different points in time- has always been a popular topic for science fiction enthusiasts for decades.