http://opensimulator.org/ from the site :

What is OpenSimulator?

OpenSimulator is an open source multi-platform, multi-user 3D application server. It can be used to create a virtual environment (or world) which can be accessed through a variety of clients, on multiple protocols. It also has an optional facility (the Hypergrid) to allow users to visit other OpenSimulator installations across the web from their ‘home’ OpenSimulator installation. In this way, it is the basis of a nascent distributed Metaverse.

OpenSimulator allows virtual world developers to customize their worlds using the technologies they feel work best – we’ve designed the framework to be easily extensible. OpenSimulator is written in C#, running both on Windows over the .NET Framework and on Unix-like machines over the Mono framework. The source code is released under a BSD License, a commercially friendly license to embed OpenSimulator in products. If you want to know about our development history, see History.

Out of the box, OpenSimulator can be used to simulate virtual environments similar to Second Life™, given that it supports the core of SL’s messaging protocol. As such, these virtual worlds can be accessed with the regular SL viewers. However, OpenSimulator does not aim to become a clone of the Second Life server platform. Rather, the project aims to enable innovative feature development for virtual environments and the Metaverse at large.

OpenSimulator is getting more stable over time but is still a high complex software system that can suffer various bugs and quirks; handle with care!

More to come…

Closed systems suffer from entropy where open systems do not. Closed collapse and Microsoft now can not out run the they have wrought  with the sonslaughteeds they have sown. This why the have changed their minds and how they are
aware that their days are numbered.

There is a level of openness with manufacturing of hardware. Which is why open compute. Open hardware is a better choice https://en.m.wikipedia.org/wiki/Open-source_computing_hardware

http://www.exfiltrated.com/research-Instagram-RCE.php

Is an interesting article about one particular bug bounty.

http://truerest.com/  Is an example of a company that showcases Flotation Pods.

The R.E.S.T. Centre  is a Northern Ontario Flotation Therapy Centre.

Flotation therapy is an excellent tool to combine with mindfulness practices such as pranayama (breathing), Yoga, Qi gong, Tai Chi, and transcendental meditation. Using various techniques one may strengthen ones focus, and overall body awareness and health with regular flotation sessions.

Introducing flotation and meditation together will also extend the enjoyment of your flotation experience throughout your life.

Find a flotation therapy service near you.

Namaste.