 I'm kind of nervous to speak in front of 1,000 people because this is my first time to speak in RailsConf I got rejected four times from the RailsConf so this year I decided to buy a slot myself So today my topic is what's going on in the crypto world We know last year crypto is very crazy all over the world So let's talk about the last year what I'm doing So a little bit of my background I'm the founder and CEO of OTC BTC OTC BTC is the largest OTC exchange in Asia I'm also the organizer of Rails Pacific I'm a very active Rubyist in Asia and I've been building Rails products since 10 years ago So this is my background of why I'm involved in Rails industry So I always want to build something that really the product can impact the world So what OTC BTC do is we have two kind of business One is OTC and the other is crypto exchange People may ask me what is OTC? OTC is like kind of a crypto version of eBay People can sell their tokens or coins on the marketplace The other is just like stock exchange Just like crypto version We found in last year October So right now it's like for six months but we growth 300 times and we are the one and only exchange built in Rails So right now we have 200,000 users and we have over 100 million Chinese dollars in GME total So two days ago I gave a sponsor talk in RailsConf So if you are interested how I built this exchange in one month and got 300 times growth This is the link of the talk The link is bit.ly slash RailsConf OTC BTC So the last two years is pretty wild year Bitcoin has become 20 times and Ethernet 300 times So people are frequently asking me what's going on with the crypto world The truth is like last year China temporary ban of the Bitcoin transfer So the Ethernet rising The Ethernet has the smart country function but in early last year it becomes the substitute of Bitcoin's transfer value So Ethernet went 100 times But a lot of projects based on Ethernet They are using Ethernet to do the ICO So a lot of people become very rich It's just in three months So they become the following ICO madness And quick big one of like what is ICO ICO is kind of another technique to raising money from the public In tradition if you want to raise money from the VC usually takes six months or longer and it's very painful But with the ICO Especially when Ethernet comes out The speed of raising money becomes very big Very effective Then Ethernet becomes like the very ghost 100 times So people investing in crypto get a lot of return So last year the crypto becomes very hard buzzword and actually a lot of people getting very rich including me That's why I'm now doing this So in short last year it kind of crypto went through 50 years progress Kind of like we go through the Brandon resistance So the traditional fee assistance is in kind of USD dollars based on the gold And the United States ensure the value But last year is kind of blockchain version For like just one year Bitcoin becomes the digital gold And Ethernet becomes the digital USD dollars That's how crypto economy now it works So kind of like reinvent finance It's just one year and the things are keeping going on For example a lot of exchange is popping out And private investment around the crypto And also there are some developers like future index fund payment are rising So in short there's the future opportunity I think it's probably this year and the next year's trend will be this next big opportunity People will make a lot of money from this industry But this industry they are very short of good developers That's why I come in and quickly rise it But this industry has very many great challenges So the challenges including this ecosystem Interact very fast So you need to start shipping feature in very hourly or daily basis And we face performance and security challenges And we also need to ship features and API in multiple devices And this is 24 hours 7 days operation It's very challenging also very well paid industry So if you are interested in entering this crypto area Or like want to apply this job Please feel free to talk to us We are setting office worldwide And we are actively looking very good talent Who also interested in crypto and very good at Rubyang Rails So please talk to us Our booth is this Or you can find all related information through my Twitter Thank you