Lightning Network Explained

What is the Lightning Network? Lightning Network is a payment protocol that operates on the top of the Bitcoin network (“Layer 2” solution). It’s a network of decentralised nodes that allows for sending a huge number of transactions exteremly fast and for a negligible fee (even sub-satoshi level). The Lightning […]

Two Generals Problem

Two Generals’ Problem

What is the Two Generals’ Problem? The Two Generals’ Problem, also known as the Two Generals’ Paradox or the Two Armies Problem, is a classic computer science and computer communication thought experiment that we’re going to talk about in this post. First of all, to avoid any confusion, we need […]

Actor Model Explained

What is the Actor Model? Actor Model is a conceptual model of concurrent computation originated in 1973. In the Actor Model, an actor is a fundamental unit of computation and everything is an actor. The only allowed operations for an actor are: to create another actor, to send a message […]

Low latency in Java

What is latency? Let’s start with what latency really means. A quick Google search gives us the following definition: “latency is a time interval between the stimulation and response”. If you’re still confused by this definition let’s imagine you’re playing an online computer game. If your Internet connection is slow […]


What are robo-advisors?

What are robo-advisors? Have you ever come across a term robo-advisor? Have you ever wondering what that is? The first thing that comes to your mind is probably the “robo” bit, but if you’re imagining a human-like, metal creature you cannot be further from the truth. Robo-advisors are digital, financial […]