View Ether transactions live is the type of visual pages you can view for hours, you learn with the different things that are represented, and enjoy how they move.

Last weekend had the opportunity to discover this place with a group of people that were explaining me the details about:

  • How the transactions are validated,
  • how the blocks are completed,
  • how the nodes are connected and how they are mining.
  • why some blocks are discarded and the transactions moved to other blocks.
  • how the transactions with more gas are managed with more priority,
  • etc.

To me, to understand the dynamics of a block chain, this is now the best visual reference I know.




Ether is a fundamental cryptocurrency for operation of Ethereum, which thereby provides a public distributed ledger for transactions. It is used to pay for gas, a unit of computation used in transactions and other state transitions.

A wei is a fraction of an ether:

  • 1: wei
  • 10^3: Kwei
  • 10^6: Mwei
  • 10^9: Gwei
  • 10^12: szabo
  • 10^15: finney
  • 10^18: ether

Where can I see what miners are accepting?

You can visit and obtain that information from there.

You can also calculate the cost of a transaction (TX) on

Ether gas calculation

WordPress scans

To have a minimum of security on wordpress the minimum is to keep the environment up to date (majority of updates are security updates), you can scan how secure it is with this library:

Or you can direcly go to a place like this and check it on-line:

There are so many spaces like this that offer short data in the free version and they try to sell you other versions.

Common telecomunications network: open, free and neutral

This is the purpose of, a place where there are so many interconnected routers, lines and individuals sharing their network with a clear purpose: open, free and neutral.

Coverage map

You can see a map where you will see how extended the network is:

guifinet map Spain

In Sevilla there is a cooperative working under the same principles:

Amazon list

This table is an non quantitative analysis of the companies and industries that will be threatened by Amazon.

It’s a completely personal opinion that I update from time to time.


  • Barnes and Noble (Books).
  • Staples






  • Amazon and other companies start an insurance company (impact forecast in 5 years: 2023).


  • Start on the logistics / delivery area (affected companies: UPS, FedEx). Impact forecast in 5 years: 2024.


  • Retail: J. Crew, Neiman Marcus, JC Penney, Stage Stores, Tuesday Morning, Brooks Brothers, 




  • CVS, Walgreens, Rate Aid.


  • Insurance companies affected by decision in 2018
  • UPS, FedEx.


  • Logistics / delivery area companies affected by decision in 2019.


  • Logistics / delivery area companies affected by decision in 2020 (this line is put on hold by Covid-19)

Major competitors since the begining

  • Target
  • Wallmart

Tecnological competitors (against AWS)

  • Google: there were in good position to create what today is AWS (2003-2005), they had the servers and the financial muscle to create the software on top, but they did not do it.
  • VM-Ware: there were in good position to create what today is AWS (2003-2005), they had the software and the financial muscle to pivot to offer their internal systems to the public, but they didn’t.
  • Microsoft: with Azure they have been the only major company to take part of the Infrastructure as a service market (2017-2018 they started to evolve and be a thread to the public).

New buzzword, Flippening

New buzzword, at least to me

Flippening is defined as an expected paradigm shift in the world of cryptocurrency, where the values of cryptocurrencies are no longer primarily based on the value of Bitcoin.

If flippening happens, it will mark the end of the absolute dominance and special status that Bitcoin has had in cryptocurrency markets ever since its inception in 2009.

Who can provoke it? Etherium, it’s basically the ecosystem that is growing at a considerable speed to provoke it.

Where can I check how is this evolving? For instance:

This page has 2 concerns to me:

  • They do not describe how the calculate the numbers they publish.
  • They do not provide a graph with the evolution during the time they have measured it.

Do you think that flippening will happen?

The extended concept of flippeting is based on the market capital.

In June 2017 it was closed to happen:

Flippening June 2017After that Bitcoin became extremely popular and you perfectly know what happens between October and December 2017.

Now, May 2018 the situation is:

Flippening May 2018Do you think that the flippening effect will happen?

If so, when?

I have no clue, but if I have to do a bet I would say that it will happen in Q1 2019. Why? Because there are so many ICOs published with consistent companies behind investing. Not all will survive, but that volume will be the one that will incline the sclale to the other side.

There is another significant flippening that long term investors are looking for

and it is that the number of token-users overcomes the number of token-traders. This article explains very well all the key aspects that will enable some crypto-assets to become long term investment assets.

Transformations that require to provide specific value


We are working on a contract renewal with a customer that is driving the process with clear goals and expectations. They want to renew just for 2 years and have a YoY savings of 6%.

Initial approach

We were requested to look into the current solutions, look for improvements and identify transition or transformation projects that enable a new contract with the 6% savings.

We have done the analysis and after that we have done some specific conclusions and a generic conclusion about the situation.

What is the typical cycle of CAPEX investment where you are looking for ROI?

  • 5 Years contract.
  • Transition & transformations during the first 2 years.
  • Positive return in the fith year.
  • Consider basic calculation/benefits, I have not added any additional benefit as time to market, or other benefits.

In my analysis I have created simple scenarios:

  • Scenario 1: plain scenario, as baseline for comparison (I do not do anything).
  • Scenario 2: T&T with 10% on 5 years contract with small YoY reduction.
  • Scenario 3: T&T with 10% on 5 years contract with a more agressive YoY reduction.


  • When creating T&T programs with specific returns, you require some time to
  • T&T should not be more than 10% – 12% of the overall price of your solution.
  • In environments where automation is deployed and there are not other major angles to improve, a different approach is required (change of solution with a business case that requires more CAPEX and years to obtain ROI).
  • Hidden cost is an obstacle to be competitive.
  • In our case, it is mathematically not possible to propose a T&T project to recover the ROI is just 2 years (if you are not removing a clear major issue). The only available approach is to accelerate continuous improvement on the existing services.

Análisis técnico y velas japonesas para inversores de medio y largo plazo partiendo de cero

Gregorio Hernández Jiménez

ha escrito muchos libros sobre bolsa, este es el segundo que empiezo a leer y el primero que termino, el otro aún lo tengo a medias.

El libro me ha permitido aprender cosas básicas sobre el trading que no sabía, explicación de los indicadores básicos, una guía de como integrar todo y sobre todo unas explicaciones con algunas metáforas muy buenas que son fáciles de recordar.

Todo lo que leí hasta ahora estaba enfocado en trading sobre Forex y cryptomonedas, este está enfocado en stocks, lo cual, combinado con las explicaciones básicas de indicadores me ha resultado muy fructífero en estos momentos.