title: creating conda venv: conda env create VS conda env update
body: <p>When creating conda virtual environment with YAML file for the <b>first time</b>, I unknowingly ran:</p>
  
  <pre><code>conda env update -f environment.yml
  call activate process_name
  </code></pre>
  
  <p>which successfully created a venv in: <i>C:\Users\userName\AppData\Local\Continuum\anaconda3\envs</i>.</p>
  
  <p>Should I have ran the following instead?</p>
  
  <pre><code>conda env create -f environment.yml
  call activate process_name
  </code></pre>
  
  <p>Does <code>conda env update</code> create a new venv if no existing venv is found in the anaconda envs directory?</p>
  
  <p>How stable is <code>conda env update</code> in defaulting to creating a new venv if no existing venv is found?</p>