<img src="https://gyazo.com/5ba30211eb3cf49fe8452d5409228df0/thumb/1000" alt="image">
A story about how some people observe the same phenomenon and think &quot;<a href="/en/Effectiveness.">Effectiveness.</a>&quot; and others think &quot;[Ineffective.
<ul>
<li>A: If you spend enough on costs, the end result is the same, so there is no <a href="/en/effect">effect</a>.</li>
<li>B: It is effective because of the improvement when compared at a certain cost.</li>
<li>C: It is effective because the cost required to achieve a certain performance is reduced.</li>
</ul>
Influenced by <a href="/en/cost%20effectiveness">cost effectiveness</a> of whether the cost is perceived as large or small when &quot;costing enough.&quot;
relevance
 - <a href="/en/Effect%20of%20Pretrain">Effect of Pretrain</a>
<ul>
<li><a href="/en/blind%20spot%20card">blind spot card</a> 22</li>
</ul>
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