There’s something a little strange that one of today’s hottest trends in technology is… virtual reality.
It’s an idea that seems past its time; sitting alongside household atomic generators and personal jetpacks as visions for the future that seem laughable today. But VR isn’t a joke anymore.
I had the chance to try on the headset that has almost single-handedly revived interest in virtual reality: the Oculus Rift.
For now, the Rift is only in the prototype stage and has some way to go before it’s ready for consumers. Still, even at this early stage the potential of the Rift is incredible.
It looks big and bulky, but once it was strapped to my head I couldn’t feel the weight of the Rift. The whole setup is slightly cumbersome; you have the headset, then you have to put on headphones and find your controller — without being able to see either, because your eyes are covered by the Rift.
My first impressions of the Rift? It’s a little unsettling. I was surprised by the low resolution of the screen, individual pixels reminding me that my eyes were millimeters away from them; I was acutely aware of the edges of the display; and basically, I could feel like I had a big plastic visor strapped to my face.
But then you move your head… and your view of the world shifts almost perfectly with your movement. Move your head to the left, and you’re looking left.
I played a 3D platforming game called Lucky’s Tale (from the creator of Words With Friends). To be brutally honest, it felt a little like a simple Mario clone: You make a cute little fox run and jump along a basic path running from left to right. Then the path turns back to the left… and you find yourself scoping out the way ahead simply by turning your head to look at it.
Video games have allowed you to move your view of the world for years through a controller. It’s not a new idea. But with the Rift, looking around a game’s world is as natural as looking around our own.
That’s when the Oculus Rift experience starts to click, and it all starts to work.
Since the handover in 1997, Hong Kong has been ruled under the governing principle of "one country, two systems."
But a white paper issued this week by China's State Council Information office is trying to set the record straight, emphasizing Beijing's "comprehensive jurisdiction" over the territory.
The white paper puts forward the view that some Hong Kong residents are "confused or lopsided in their understanding" of the principle.
It says, "The high degree of autonomy of the HKSAR (Hong Kong Special Administrative Region) is not full autonomy, nor a decentralized power. It is the power to run local affairs as authorized by the central leadership."
Political columnist and commentator Frank Ching calls the paper a clear warning to Hong Kong, pointing out a line about Beijing's right to declare a state of emergency in Hong Kong.
"If they declare a state of emergency, that means the People's Liberation Army can come in and take over the job of Hong Kong police."
He adds, "That would be the end of Hong Kong as we know it today."
Ching also makes an interesting observation about why the paper was released in seven languages.
"It's warning foreign countries not to use Hong Kong as a base for subversion."
"If history tells us anything it's that whistle-blowers are usually treated kindly, and claims of national security much less so."
Here's my interview with Edward Snowden's legal adviser, Ben Wizner, one year after Snowden revealed himself as the NSA leaker.
Shen Tong is a Chinese dissident who helped lead the Tiananmen Square protests in 1989.
Ahead of the 25th anniversary of the crackdown, I asked him about his experience during the demonstrations, and the chilling moment when he realized troops were not shooting rubber bullets.
We also talked about a lack of awareness in China about what happened back then.
"It seems like there is a collective amnesia not only due to the lack of information but also due to at least this tacit agreement between the post-'89 police state and the urban population," he tells me via satellite from New York.
"'Let’s forget about the past and why rock the boat' because there are several groups of elite populations, not just in China, that are making so much money so quickly."
But Shen is certain that the collective amnesia concerning Tiananmen will inevitably lift.
"There are plenty of indications that collective memory, so important to the national psyche, cannot be forgotten," says Shen.
"So even though a lot young people don’t know the details... those memories can come back very quickly as we’ve seen time and again in history."
To many people, it's the defining image of the Tiananmen crackdown: a single man staring down a line of tanks.
"Tank Man" photographer Jeff Widener recalls what it took to capture that moment.
"I had to get a bicycle and go all the way down past soldiers and tanks and sporadic gunfire in the distance," Widener says. "And then you had to get past secret police, who were using electric cattle prods on the journalists if they didn't give up their supplies."
Of course, getting the photo out to the world was also extremely difficult. Click here to find out how he did it.
Widener also remembers the sense of hope among those student protesters in 1989.
"What struck me as something very dramatic was the building of the Goddess of Democracy," he says. "Because there you have the symbol of freedom, which is basically a duplication of the Statue of Liberty. And that is facing right across the street from the Mao portrait at the Forbidden City."
But, Widener adds, that he and other journalists wondered how long it would be until the Chinese government refused to tolerate the face-off any more.
Before his arrest in 2009, Nobel Peace Prize laureate Liu Xiaobo would write a poem every year to commemorate the 1989 Tiananmen crackdown.
The poems have been translated into English by Jeffrey Yang and published in the compilation, "June Fourth Elegies."
I talked to Yang about Liu Xiaobo's poetry, and the power of poetry to remember an event that has been publicly erased in China.
In an unassuming office building in Hong Kong, is the world's first museum dedicated to the Tiananmen crackdown of 1989.
Let's go inside.
Many CNN viewers know him as Mira Sorvino's guide in "Every Day in Cambodia," the 2013 CNN Freedom Project documentary that fixed a spotlight on child sex trafficking in the country.
American activist Don Brewster has dedicated his life to saving Cambodia's children. As the founder of Agape International Mission, he has helped rescue hundreds of girls from sexual slavery.
In Hong Kong, I talked to Brewster about how he tracks down Cambodia's enslaved girls, helps to rebuild their lives, and equips local communities to join the fight against the despicable trade.
Brewster also tells me about the impact of the Freedom Project documentary, and how it has led to justice for some of the girls in Cambodia.
This week, the Hong Kong government started to destroy almost 30 tons of confiscated ivory.
It is destroying the massive stockpile by burning it. Officials plan to incinerate about three tons of illegal ivory a month. The process is expected to take at least a year.
Ivory has long been valued in China for making prized seals and carvings - turning China into a global hub for the illegal ivory trade.
So can this high-profile government program send a strong enough message to end the public's appetite for elephant tusks?
I talked to wildlife activist Sharon Kwok for her reaction to the campaign.