Simple solutions to complex problems

Simple solutions to complex problems

Each post is devoted to a simple solution to a complex problem.


A simple way to import an offline wallet into an online wallet and send a transaction from the online wallet to a new offline wallet.

15 Apr 2022 2 minute read 0 comments I_g_o_r

In the previous post (see [1]) we had created the offline generated on demand (GOD) wallet and sent some nano to it. In this post we learn how to import this offline wallet into an online wallet and send a transaction from the online wallet to a new...

A simple way to create a generated on demand (GOD) offline nano wallet

8 Apr 2022 4 minute read 6 comments I_g_o_r

In the previous posts (see [1-2]) we had considered how to create generated on demand private keys and wallets for ethereum blockchain.   In this post we create a secure, generated on demand (GOD) offline nano wallet and receive free crypto (nano) on...

A simple way to introduce cashbacks/rebates into friendly arbitrage

1 Apr 2022 4 minute read 4 comments I_g_o_r

When we win or receive something we experience positive emotions. When we lose or forced to give something we experience negative emotions. Negative emotions are bad for people’s health, businesses and sales, that is why many businesses offer cashbac...

A simple way to turn your old laptop into a security monitoring device

28 Mar 2022 1 minute read 30 comments I_g_o_r

In this post we consider how to turn your old laptop into a security monitoring device. In the example below an old Asus EEE PC (1st generation) is used.     This laptop does not have an internal web camera, therefore an external usb webcam will be...

A simple way to generate easy recoverable Ethereum private/public keys and an address

25 Mar 2022 5 minute read 15 comments I_g_o_r

In this post we consider a simple way to generate easy recoverable Ethereum private/public keys and also an address on the Ethereum blockchain. This triplet is an Ethereum wallet. If you will lose your private key, you will be able to recover it by r...

Simple ways to make probabilistic forecasts

18 Mar 2022 4 minute read 6 comments I_g_o_r

Probabilistic forecasts allow traders/investors minimize loses and maximize profits in their trading/investment strategies. There are many methods to make forecasts (see [1-3]). In the previous posts (see [4-6]) we considered examples of how to use p...

A simple procedure to practice friendly arbitrage.

12 Mar 2022 1 minute read 1 comment I_g_o_r

In one of the previous posts we had considered the method of friendly arbitrage (see [1]). In this post we consider a simple procedure to practice this method. The table below presents all steps of this procedure. An example also is given below. Exa...

A simple way to increase your income when values of cryptos go up

11 Mar 2022 5 minute read 2 comments I_g_o_r

Cryptos are volatile assets. Sometimes they go up, but some times they go down. When they go up it is easy to make money by buying cryptos and watching how their values increase. But there is a simple way to multiply income in this case by means of l...

A simple solution to the cryptos mass adaptation problem

4 Mar 2022 1 minute read 8 comments I_g_o_r

For many years marketing companies are trying different methods to make cryptos adapted by masses, but without any success. Today, the cryptos mass adaptation problem is similar to the problem of mass adaptation of computers in the 20-th century. Sin...

A simple way to make money when values of cryptos go down

4 Mar 2022 5 minute read 7 comments I_g_o_r

Cryptos are volatile assets. Sometimes they go up, but some times they go down. When they go up it is easy to make money by buying cryptos and watching how their values increase. When they go down values of cryptos portfolios also go down. Passive in...