text: 4 What Matters for Learning Represen- 
  
  tations from Video? 
  4.2 Pretraining Data Distribution 
  
  In this section we isolate the contributions of several de- 
  sign choices, including: a) the use of a feature prediction  Next we study the impact of the pretraining data dis- 
  tribution in Table 2. Leveraging large scale datasets 
  
  5 